National Output Shaft Seal Kit for 1975-1978 GMC P15 Manual Transmission hx

• ENSURES A SECURE AND LEAK-FREE SEAL: This kit includes premium materials and precise engineering to ensure a perfect seal around the output shaft, preventing any leakage and maintaining the integrity of the transmission.
• EXTEND THE LIFESPAN OF THE TRANSMISSION: This kit includes all necessary components, such as seals, gaskets, and O-rings, to effectively repair leaks and prevent contamination of the transmission fluid. By restoring the proper function of the output shaft seal, this kit ensures smooth and reliable power transfer, enhancing overall driving performance.
• RELY ON QUALITY SEALS AND BEARINGS: National produces a product line of seals and bearings that aids technicians in their daily installations to help them get the job done quickly. They provide premium quality, no-compromise solutions for virtually every wheel-end repair
• TRUST IN NATIONAL: The National brand has been offering premium wheel-end solutions for over 75 years. The National brand of oil seals and bearings has built a reputation as one of the most respected names in the industry, producing high end, premium products that meet or exceed the original equipment specifications across the full spectrum of wheel bearings and oil seal needs

A part of the Federal-Mogul Corporation, National manufactures wheel bearings and oil seals that meet and exceed OE requirements. The team at National keeps pace with the industry and provides ultimate solutions to meet the needs of today’s vehicles. The company has modern equipment, technology, and the expertise to coordinate the development, manufacturing, and testing of each product for maximum satisfaction of each customer's needs. National is a premier choice when it comes to complete wheel end solutions.

Year Range	Make	Model	Notes
1975	GMC	P15	Standard;3 Speed;Seal & Bushing Kit;GMC SM326
1975	GMC	P15	Standard;3 Speed;Seal & Bushing Kit;GMC SM330
1976	GMC	P15	Standard;3 Speed;Seal & Bushing Kit;GMC SM326
1976	GMC	P15	Standard;3 Speed;Seal & Bushing Kit;GMC SM330
1977	GMC	P15	Standard;3 Speed;Seal & Bushing Kit;GMC SM326
1978	GMC	P15	Standard;3 Speed;Seal & Bushing Kit;GMC SM326

• To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim, and Engine in the eBay Compatibility Table.
• Many of the parts we sell at Sixity Auto only work with specific vehicles. Please double-check the accuracy of your order before purchasing. Check that the reference number, size, and placement are correct.

• If you have any questions, you may reach us via our eBay Contact Form.
• One of our outstanding customer service representatives from our US-based service centers will respond to your questions or feedback.

• Your order will be processed and shipped within one business day.
• We strive to ship every order promptly. We will email you a tracking number when your order ships.
• Once the tracking number is generated, please allow 24-48 hours for tracking movement to appear.
• Our smaller items are shipped via USPS First Class or DHL, while larger, heavier items are shipped via FedEx Ground or UPS. Some items offer faster shipping for a small fee. Please see the Shipping and payments eBay tab for more details on shipping rates and delivery times.
• Sorry, no local pickups available.
• We participate in the eBay global shipping program. Please see the Shipping and payments eBay tab for details on the countries we ship to outside of the U.S.

• Sixity Auto stands for value, selection, and quality. Our goal is to provide a 5-star shopping experience.
• We give all our customers positive eBay feedback. Please work with us by contacting us here if you have a problem, before leaving negative feedback.

• If you would like to return your new, unopened, and uninstalled part:


1. From within My eBay, click Purchases.
2. Find the item you ordered.
3. Below the Leave Feedback button, click [More Actions] > [Return This Item].
4. Select a reason. The most common reason is Doesn't Fit.
5. Add details like I tried to install this part, and it didn't fit.
6. Click [Request a Return].


• Returned parts will be inspected, and a refund given within 5 business days if the part is new, unopened, and uninstalled. Original shipping costs and a restocking fee may be deducted from your refund.
• If the item has been opened, installed, or used, we are unable to accept a return due to safety concerns.

We help drivers find top OEM-replacement auto parts from the best brands in the world at unbeatable prices with fast and free shipping. Try our fast shipping today: 99% of orders ship within 1 business day!

Our goal is to provide you with the best possible shopping experience through unsurpassed value, convenience, and selection. We strive to deliver on our core tenets for our value-conscious customer base including free and fast shipping*, a 100% fitment guarantee**, a U.S.-based Customer Service Center, and a limited 1-year warranty on Sixity-branded parts. Give us a try today - and thanks for shopping with us!

• Free, Fast Shipping*
• 100% Fitment Guarantee**
• 1-Year Limited Warranty on all Sixity-brand parts
• US-Based Customer Service Team
• Always Genuine OEM-Replacement Parts from the Best Brands
• All Parts Ship from the United States within 1 Business Day
• 5-Star Rated on Google, Sitejabber, Trustpilot, and A+ Rated by the BBB

* Free shipping applies to the lower 48 states. Certain items may require additional surcharges.
** We guarantee all parts sold under the Sixity brand will fit the vehicles they are advertised to fit.