Transmission Rear Oil Seal
A transmission rear oil seal is located between a driveshaft and the rear of a transmission. It serves to prevent fluid leaks, while allowing the driveshaft to rotate. Its failure will lead to fluid leaks and improper lubrication of moving parts inside the transmission.
Transmission rear oil seal replacement
- The sealing surface should be checked for damage every time you replace the transmission rear oil seal. This will prevent damage to a new seal.
- If the rear oil seal is replaced, the rear transmission mount should be checked for signs of wear and damage, and replaced if needed.
- If you own a four-wheel drive vehicle, a poor transmission rear oil seal can leak into the transfer case. You should check the fluid level in the transfer case if no visual leak is found.