Description
This NOS Genuine GM Transmission Main Drive Gear Bearing Oil Seal is designed for vintage vehicles from 1971 to 1972. Manufactured by General Motors in the United States, the transmission seal carries the OE/OEM Part Number 3987937. This single-pack transmission seal is a specific fit for certain vintage models and is not a universal fitment. While the product does not come with a manufacturer warranty, it is a genuine GM part tailored for classic cars.






