Omix-Ada 18883.09 - 1979 Jeep CJ Transmission Synchronizer Assembly

Transmission Synchronizer Assembly, First And Reverse, Incl. Blocking Ring (18883.09) by Omix-Ada®. The synchronizer brings parts that are rotating at different speeds to one speed. It consists of a hub that is splined to the mainshaft, 2 blocking rings, insert detents and their springs, and a sleeve. Acting on the shift lever moves the shift shaft and fork, which in turn moves the sleeve to lock the selected gear to the mainshaft. A worn synchronizer can make shifting hard, or in extreme cases, prevent shifting.

Fits Following Models:

• Jeep CJ7 4.2L 2BBL
• Jeep CJ7 5.0L

Features:

• Performs according to OEM specifications
• Meets or exceeds OEM quality standards
• OEM quality at an affordable price
• Identical to original equipment, for perfect fit and function
• Backed by a 5-year limited warranty

When the transmission is in neutral, the transmission gears are meshed with the cluster gear, but also turn freely on the mainshaft. When the driver puts the transmission in gear, the shifter moves the shift rail, and the shift fork in turn moves the synchronizer sleeve. When the sleeve moves, the inserts push the blocking ring against the shoulder of the gear. The cone on the blocking ring acts as a kind of clutch to bring the gear to the same speed as the blocking ring, which allows the synchronizer sleeve to slide over the gear's clutch teeth, fully engaging the synchronizer and locking the gear to the mainshaft.

The most common wear parts of a synchronizer assembly are the blocking rings, which are usually made of bronze or brass. Inspect the blocking rings for worn and rounded clutch teeth, damage to the insert engagement area, and wear to the cone surface. There are fine grooves in the cone area that disappear with wear. Inspect the splines on the hub and sleeve for wear; the sleeve should slide freely on the hub. Also check the inserts and insert springs for damage.

If symptoms and inspection determine the need for a new synchronizer assembly, get the one that's designed and specifically manufactured for your Jeep. It's made to fit and function the same or better than original equipment, so you can be assured that installation will go smoothly and operation will be flawless. The synchronizer assembly is backed by a 5-year limited warranty.

Omix-Ada® is based in Suwanee, Georgia. The company was founded in 1992 and today is the largest independent manufacturer and distributor of Jeep parts and accessories, with over 11,000 parts in stock. However, Omix-Ada is more than just a parts manufacturer; the founder and the employees are all Jeep enthusiasts who are dedicated to producing the finest quality Jeep parts. Omix-Ada has everything from licensed parts for concours restorations, to stock replacement parts for repairing Jeeps from the 1940s to the present day, as well as heavy-duty and high-performance parts sold under the Rugged Ridge®, Alloy USA®, Outland®, ORV Suspension, and Precision Gear® brands. Omix-Ada engineers are constantly developing and trail testing new products to make sure they're perfected for you, and the company has won numerous awards at the annual SEMA (Specialty Equipment Market Association) show.