1. Raise and support the vehicle.
2. Remove the transmission fluid. Refer to Automatic Transmission Fluid/Filter Changing .
3. Remove the propeller shaft. Refer to Propeller Shaft in Propeller Shaft



4. Remove the rear extension oil seal.

Required Tools

J 21426 Rear Extension Seal Installer

1. Install the new seal using J 21426 .
2. Coat the outer edge of the seal case with a non-hardening sealer.
3. Install the propeller shaft. Refer to Propeller Shaft in Propeller Shaft.
4. Lower the vehicle.
5. Install the new transmission fluid.
6. Fill the transmission to the proper level with Dexron® III Transmission Fluid.