Spark Plug

Iridium Tip Spark Plug

Iridium Tip Spark Plug; 4 Pack; Plug Type 6IR5; [Available While Supplies Last];

Autotronic Controls Corp. (ACC) was founded in 1970 as a research and development company by two engineers from White Sands (New Mexico) Missile Range. The men and their other partners were working on a lean burn fuel system called the Electrasonic Fuel Induction system to help fuel economy of new and older automobiles. As the new fuel system was being perfected, the air/fuel mixture was becoming so lean that it was difficult for conventional breaker points and early electronic ignitions to ignite it. The men of ACC then started investigating a new ignition system by using modern technology called capacitive discharge (CD). The CD design opened another door for the ignition, the capability to spark multiple times. ACC has produced the best performing and most popular performance ignitions for over 20 years. The high energy spark of the CD design combined with multiple sparks resulted in a potent ignition. Not only did the multiple spark discharge (MSD) ignite the lean fuel mixture, it made overall improvements in the engine's performance! Improved starting, smooth idle, less emissions and more power are benefits every car and truck can take advantage of, especially race cars. Professional racers learned of the new MSD quickly and soon word spread throughout the racing world. Since then, MSD Ignition Controls have gone on to be the ignition of choice of the top professional drivers in NHRA, IHRA, NASCAR, World of Outlaws, DIRT, SCORE, IDBA and many more. Together, our team designs, develops, tests and manufactures the entire line of MSD products including Ignition Controls, Coils, Timing Accessories and Spark Plug Wires and Accessories. MSD, housed in three buildings includes four engine dynos, two chassis dynos, complete CNC and machining centers, modern shipping and packaging areas plus assembly and burn-in departments.

1989|GMC|V3500|Sierra Classic Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Sierra Classic Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Sierra Classic Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Sierra Classic Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Sierra Classic Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Sierra Classic Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|High Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|High Sierra Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|High Sierra Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|High Sierra Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|High Sierra Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|High Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Base Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Base Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Base Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Base Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Base Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Base Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|V3500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Sierra Classic Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Sierra Classic Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Sierra Classic Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Sierra Classic Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Sierra Classic Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Sierra Classic Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|High Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|High Sierra Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|High Sierra Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|High Sierra Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|High Sierra Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|High Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Base Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Base Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Base Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Base Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Base Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Base Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|R3500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|P3500|Value Van Standard Cargo Van 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|P3500|Value Van Standard Cargo Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|P3500|Value Van Standard Cargo Van 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|P3500|Base Stripped Chassis|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|P3500|Base Stripped Chassis|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|P3500|Base Stripped Chassis|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|P2500|Value Van Standard Cargo Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|P2500|Value Van Standard Cargo Van 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|P2500|Base Stripped Chassis|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|P2500|Base Stripped Chassis|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra SLX Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra SLX Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra SLX Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra SLX Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra SLX Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra SLX Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra SLE Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra SLE Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra SLE Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra SLE Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra SLE Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra SLE Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|K3500|Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra SLX Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra SLX Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra SLX Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra SLX Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra SLX Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra SLX Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra SLE Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra SLE Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra SLE Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra SLE Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra SLE Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra SLE Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1989|GMC|C3500|Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Sierra Classic Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Sierra Classic Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Sierra Classic Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Sierra Classic Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Sierra Classic Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Sierra Classic Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Sierra Classic Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Sierra Classic Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Sierra Classic Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|High Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|High Sierra Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|High Sierra Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|High Sierra Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|High Sierra Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|High Sierra Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|High Sierra Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|High Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|High Sierra Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Base Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Base Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Base Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Base Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Base Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Base Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Base Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Base Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|V3500|Base Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Sierra Classic Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Sierra Classic Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Sierra Classic Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Sierra Classic Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Sierra Classic Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Sierra Classic Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Sierra Classic Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Sierra Classic Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Sierra Classic Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|High Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|High Sierra Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|High Sierra Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|High Sierra Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|High Sierra Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|High Sierra Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|High Sierra Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|High Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|High Sierra Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Base Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Base Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Base Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Base Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Base Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Base Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Base Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Base Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R3500|Base Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R2500|Sierra Classic Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R2500|High Sierra Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|R2500|Base Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|P3500|Value Van Standard Cargo Van 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|P3500|Value Van Standard Cargo Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|P3500|Value Van Standard Cargo Van 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|P3500|Base Stripped Chassis|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|P3500|Base Stripped Chassis|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|P3500|Base Stripped Chassis|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|P2500|Value Van Standard Cargo Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|P2500|Base Stripped Chassis|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra SLX Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra SLX Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra SLX Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra SLX Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra SLX Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra SLX Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra SLE Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra SLE Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra SLE Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra SLE Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra SLE Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra SLE Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|K3500|Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|G3500|Rally Custom Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|G3500|Rally Custom Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra SLX Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra SLX Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra SLX Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra SLX Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra SLX Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra SLX Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra SLE Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra SLE Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra SLE Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra SLE Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra SLE Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra SLE Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|GMC|C3500|Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Silverado Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Silverado Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Silverado Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Silverado Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Silverado Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Silverado Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Silverado Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Silverado Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Silverado Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Silverado Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Silverado Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Silverado Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Scottsdale Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Scottsdale Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Scottsdale Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Scottsdale Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Scottsdale Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Scottsdale Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Scottsdale Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Scottsdale Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Scottsdale Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Scottsdale Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Scottsdale Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Scottsdale Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Custom Deluxe Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Custom Deluxe Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Custom Deluxe Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Custom Deluxe Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Custom Deluxe Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Custom Deluxe Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Custom Deluxe Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Custom Deluxe Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Custom Deluxe Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Custom Deluxe Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Custom Deluxe Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Custom Deluxe Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Cheyenne Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Cheyenne Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Cheyenne Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Cheyenne Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Cheyenne Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Cheyenne Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Cheyenne Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Cheyenne Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Cheyenne Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Cheyenne Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Cheyenne Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R30|Cheyenne Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R20|Silverado Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R20|Scottsdale Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R20|Custom Deluxe Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R20|Custom Deluxe Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R20|Custom Deluxe Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|R20|Cheyenne Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|G30|Hi-Cube Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|G30|Chevy Van Standard Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|G30|Chevy Van Extended Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|G30|Chevy Van Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|G30|Beauville Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1988|Chevrolet|G30|Beauville Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Sierra Classic Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Sierra Classic Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Sierra Classic Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Sierra Classic Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Sierra Classic Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Sierra Classic Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Sierra Classic Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Sierra Classic Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Sierra Classic Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|High Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|High Sierra Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|High Sierra Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|High Sierra Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|High Sierra Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|High Sierra Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|High Sierra Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|High Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|High Sierra Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Base Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Base Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Base Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Base Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Base Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Base Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Base Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Base Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V3500|Base Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V2500 Suburban|Sierra Classic Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V2500 Suburban|High Sierra Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|V2500 Suburban|Base Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Sierra Classic Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Sierra Classic Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Sierra Classic Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Sierra Classic Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Sierra Classic Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Sierra Classic Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Sierra Classic Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Sierra Classic Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Sierra Classic Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|High Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|High Sierra Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|High Sierra Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|High Sierra Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|High Sierra Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|High Sierra Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|High Sierra Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|High Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|High Sierra Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Base Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Base Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Base Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Base Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Base Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Base Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Base Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Base Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R3500|Base Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R2500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R2500|Sierra Classic Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R2500|Sierra Classic Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R2500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R2500|High Sierra Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R2500|High Sierra Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R2500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R2500|Base Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|R2500|Base Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|P3500|Value Van Standard Cargo Van 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|P3500|Value Van Standard Cargo Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|P3500|Value Van Standard Cargo Van 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|P3500|Base Stripped Chassis|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|P3500|Base Stripped Chassis|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|P3500|Base Stripped Chassis|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|P2500|Value Van Standard Cargo Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|P2500|Value Van Standard Cargo Van 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|P2500|Base Stripped Chassis|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|P2500|Base Stripped Chassis|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|G3500|Vandura Standard Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|G3500|Vandura Special Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|G3500|Vandura Extended Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|G3500|Rally STX Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|G3500|Rally STX Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|G3500|Rally Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|G3500|Rally Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|G3500|Rally Custom Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|G3500|Rally Custom Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|G3500|Rally Camper Special Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|GMC|G3500|Magnavan Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Silverado Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Silverado Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Silverado Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Silverado Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Silverado Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Silverado Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Silverado Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Silverado Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Silverado Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Silverado Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Silverado Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Silverado Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Scottsdale Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Scottsdale Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Scottsdale Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Scottsdale Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Scottsdale Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Scottsdale Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Scottsdale Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Scottsdale Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Scottsdale Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Scottsdale Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Scottsdale Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Scottsdale Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Custom Deluxe Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Custom Deluxe Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Custom Deluxe Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Custom Deluxe Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Custom Deluxe Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Custom Deluxe Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Custom Deluxe Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Custom Deluxe Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Custom Deluxe Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Custom Deluxe Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Custom Deluxe Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R30|Custom Deluxe Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R20|Silverado Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R20|Silverado Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R20|Silverado Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R20|Scottsdale Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R20|Scottsdale Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R20|Scottsdale Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R20|Custom Deluxe Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R20|Custom Deluxe Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|R20|Custom Deluxe Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|G30|Hi-Cube Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|G30|Chevy Van Standard Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|G30|Chevy Van Extended Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|G30|Chevy Van Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|G30|Beauville Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987|Chevrolet|G30|Beauville Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|P3500|Value Van Standard Cargo Van 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|P3500|Value Van Standard Cargo Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|P3500|Value Van Standard Cargo Van 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|P3500|Base Stripped Chassis|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|P3500|Base Stripped Chassis|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|P3500|Base Stripped Chassis|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|P2500|Value Van Standard Cargo Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|P2500|Value Van Standard Cargo Van 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|P2500|Base Stripped Chassis|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|P2500|Base Stripped Chassis|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Sierra Classic Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Sierra Classic Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Sierra Classic Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Sierra Classic Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Sierra Classic Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Sierra Classic Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Sierra Classic Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Sierra Classic Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Sierra Classic Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|High Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|High Sierra Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|High Sierra Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|High Sierra Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|High Sierra Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|High Sierra Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|High Sierra Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|High Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|High Sierra Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Base Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Base Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Base Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Base Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Base Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Base Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Base Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Base Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K3500|Base Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500|Sierra Classic Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500|High Sierra Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500|Base Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500 Suburban|Sierra Classic Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500 Suburban|High Sierra Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|K2500 Suburban|Base Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|G3500|Vandura Standard Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|G3500|Vandura Special Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|G3500|Vandura Extended Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|G3500|Rally STX Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|G3500|Rally STX Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|G3500|Rally Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|G3500|Rally Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|G3500|Rally Custom Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|G3500|Rally Custom Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|G3500|Rally Camper Special Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|G3500|Magnavan Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Sierra Classic Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Sierra Classic Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Sierra Classic Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Sierra Classic Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Sierra Classic Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Sierra Classic Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Sierra Classic Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Sierra Classic Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Sierra Classic Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|High Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|High Sierra Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|High Sierra Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|High Sierra Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|High Sierra Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|High Sierra Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|High Sierra Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|High Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|High Sierra Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C3500|Base Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C2500 Suburban|Sierra Classic Sport Utility 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C2500 Suburban|Sierra Classic Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C2500 Suburban|High Sierra Sport Utility 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C2500 Suburban|High Sierra Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C2500 Suburban|Base Sport Utility 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C2500 Suburban|Base Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C1500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C1500|Sierra Classic Standard Cab Pickup 2-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C1500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C1500|High Sierra Standard Cab Pickup 2-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C1500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C1500|Base Standard Cab Pickup 2-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C1500 Suburban|Sierra Classic Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C1500 Suburban|Sierra Classic Sport Utility 4-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C1500 Suburban|High Sierra Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C1500 Suburban|High Sierra Sport Utility 4-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C1500 Suburban|Base Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|GMC|C1500 Suburban|Base Sport Utility 4-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|G30|Sportvan Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|G30|Sportvan Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|G30|Hi-Cube Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|G30|Chevy Van Standard Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|G30|Chevy Van Extended Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|G30|Chevy Van Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|G30|Beauville Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|G30|Beauville Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|G20|Sportvan Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|G20|Chevy Van Standard Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|G20|Chevy Van Extended Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|G20|Beauville Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Silverado Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Scottsdale Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C30|Custom Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Silverado Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Silverado Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Silverado Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Silverado Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Silverado Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Silverado Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Silverado Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Silverado Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Silverado Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Silverado Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Silverado Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Silverado Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Scottsdale Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Scottsdale Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Scottsdale Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Scottsdale Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Scottsdale Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Scottsdale Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Scottsdale Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Scottsdale Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Scottsdale Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Scottsdale Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Scottsdale Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Scottsdale Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Custom Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Custom Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Custom Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Custom Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Custom Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Custom Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Custom Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Custom Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Custom Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Custom Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Custom Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20|Custom Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20 Suburban|Silverado Sport Utility 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20 Suburban|Silverado Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20 Suburban|Scottsdale Sport Utility 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20 Suburban|Scottsdale Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20 Suburban|Custom Sport Utility 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C20 Suburban|Custom Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C10|Silverado Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C10|Scottsdale Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C10|Custom Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C10 Suburban|Silverado Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C10 Suburban|Scottsdale Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1986|Chevrolet|C10 Suburban|Custom Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|P3500|Value Van Standard Cargo Van 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|P3500|Value Van Standard Cargo Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|P3500|Value Van Standard Cargo Van 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|P3500|Base Stripped Chassis|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|P3500|Base Stripped Chassis|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|P3500|Base Stripped Chassis|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|P2500|Value Van Standard Cargo Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|P2500|Value Van Standard Cargo Van 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|P2500|Base Stripped Chassis|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|P2500|Base Stripped Chassis|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Sierra Classic Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Sierra Classic Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Sierra Classic Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Sierra Classic Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Sierra Classic Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Sierra Classic Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Sierra Classic Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Sierra Classic Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Sierra Classic Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|High Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|High Sierra Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|High Sierra Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|High Sierra Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|High Sierra Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|High Sierra Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|High Sierra Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|High Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|High Sierra Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K3500|Base Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|Sierra Classic Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|High Sierra Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|Base Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|Base Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500|Base Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500 Suburban|Sierra Classic Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500 Suburban|High Sierra Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K2500 Suburban|Base Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K1500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K1500|Sierra Classic Standard Cab Pickup 2-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K1500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K1500|High Sierra Standard Cab Pickup 2-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K1500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|K1500|Base Standard Cab Pickup 2-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|G3500|Vandura Standard Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|G3500|Vandura Special Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|G3500|Vandura Extended Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|G3500|Rally STX Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|G3500|Rally STX Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|G3500|Rally Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|G3500|Rally Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|G3500|Rally Camper Special Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|G3500|Magnavan Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Sierra Classic Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Sierra Classic Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Sierra Classic Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Sierra Classic Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Sierra Classic Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Sierra Classic Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Sierra Classic Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Sierra Classic Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Sierra Classic Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|High Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|High Sierra Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|High Sierra Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|High Sierra Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|High Sierra Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|High Sierra Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|High Sierra Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|High Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|High Sierra Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C3500|Base Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C2500 Suburban|Sierra Classic Sport Utility 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C2500 Suburban|Sierra Classic Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C2500 Suburban|High Sierra Sport Utility 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C2500 Suburban|High Sierra Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C2500 Suburban|Base Sport Utility 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C2500 Suburban|Base Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C1500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C1500|Sierra Classic Standard Cab Pickup 2-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C1500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C1500|High Sierra Standard Cab Pickup 2-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C1500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C1500|Base Standard Cab Pickup 2-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C1500 Suburban|Sierra Classic Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C1500 Suburban|Sierra Classic Sport Utility 4-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C1500 Suburban|High Sierra Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C1500 Suburban|High Sierra Sport Utility 4-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C1500 Suburban|Base Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|GMC|C1500 Suburban|Base Sport Utility 4-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|G30|Sportvan Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|G30|Sportvan Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|G30|Hi-Cube Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|G30|Chevy Van Standard Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|G30|Chevy Van Extended Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|G30|Chevy Van Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|G30|Beauville Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|G30|Beauville Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|G20|Sportvan Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|G20|Chevy Van Standard Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|G20|Chevy Van Extended Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|G20|Beauville Extended Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Silverado Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Scottsdale Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C30|Custom Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Silverado Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Silverado Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Silverado Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Silverado Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Silverado Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Silverado Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Silverado Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Silverado Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Silverado Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Silverado Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Silverado Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Silverado Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Scottsdale Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Scottsdale Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Scottsdale Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Scottsdale Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Scottsdale Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Scottsdale Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Scottsdale Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Scottsdale Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Scottsdale Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Scottsdale Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Scottsdale Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Scottsdale Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Custom Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Custom Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Custom Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Custom Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Custom Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Custom Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Custom Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Custom Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Custom Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Custom Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Custom Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20|Custom Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20 Suburban|Silverado Sport Utility 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20 Suburban|Silverado Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20 Suburban|Scottsdale Sport Utility 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20 Suburban|Scottsdale Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20 Suburban|Custom Sport Utility 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C20 Suburban|Custom Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C10|Silverado Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C10|Scottsdale Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C10|Custom Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C10 Suburban|Silverado Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C10 Suburban|Scottsdale Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1985|Chevrolet|C10 Suburban|Custom Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|P3500|Value Van Standard Cargo Van 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|P3500|Value Van Standard Cargo Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|P3500|Value Van Standard Cargo Van 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|P3500|Base Stripped Chassis|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|P3500|Base Stripped Chassis|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|P3500|Base Stripped Chassis|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|P2500|Value Van Standard Cargo Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|P2500|Value Van Standard Cargo Van 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|P2500|Base Stripped Chassis|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|P2500|Base Stripped Chassis|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Sierra Classic Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Sierra Classic Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Sierra Classic Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Sierra Classic Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Sierra Classic Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Sierra Classic Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Sierra Classic Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Sierra Classic Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Sierra Classic Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Sierra Classic Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|High Sierra Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|High Sierra Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|High Sierra Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|High Sierra Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|High Sierra Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|High Sierra Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|High Sierra Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|High Sierra Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|High Sierra Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|High Sierra Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Extended Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Cab & Chassis 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K3500|Base Cab & Chassis 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500|High Sierra Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500|Base Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500|Base Extended Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500|Base Extended Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500 Suburban|Sierra Classic Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500 Suburban|Sierra Classic Sport Utility 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500 Suburban|High Sierra Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500 Suburban|High Sierra Sport Utility 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500 Suburban|Base Sport Utility 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K2500 Suburban|Base Sport Utility 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K1500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K1500|Sierra Classic Standard Cab Pickup 2-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K1500|High Sierra Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K1500|High Sierra Standard Cab Pickup 2-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K1500|Base Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K1500|Base Standard Cab Pickup 2-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K1500 Suburban|Sierra Classic Sport Utility 4-Door|6.2L 379Cu. In. V8 DIESEL OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K1500 Suburban|Sierra Classic Sport Utility 4-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K1500 Suburban|High Sierra Sport Utility 4-Door|6.2L 379Cu. In. V8 DIESEL OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K1500 Suburban|High Sierra Sport Utility 4-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K1500 Suburban|Base Sport Utility 4-Door|6.2L 379Cu. In. V8 DIESEL OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|K1500 Suburban|Base Sport Utility 4-Door|5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|G3500|Vandura Standard Cargo Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|G3500|Vandura Special Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|G3500|Rally STX Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|G3500|Rally Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|G3500|Rally Custom Standard Passenger Van 3-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|G3500|Rally Camper Special Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|G3500|Magnavan Cutaway Van 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|C3500|Sierra Classic Standard Cab Pickup 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|C3500|Sierra Classic Standard Cab Pickup 2-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|C3500|Sierra Classic Standard Cab Pickup 2-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|C3500|Sierra Classic Crew Cab Pickup 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|C3500|Sierra Classic Crew Cab Pickup 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|C3500|Sierra Classic Crew Cab Pickup 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|C3500|Sierra Classic Cab & Chassis 4-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|C3500|Sierra Classic Cab & Chassis 4-Door|5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|C3500|Sierra Classic Cab & Chassis 4-Door|4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1984|GMC|C3500|Sierra Classic Cab & Chassis 2-Door|7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^