Transmission Housing Oil Seal Replacement Front Seal

Tools Required

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
2. Remove the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement in Propeller Shaft.
3. Remove the transmission. Refer to Transmission Replacement .



4. Remove the 2 clutch actuator bolts.
5. Remove the clutch actuator from the input shaft.



6. Remove the 5 bolts from the front bearing retainer.
7. Use suitable prying tool to remove the input shaft bearing retainer.
8. Remove the input shaft retaining ring.



9. Remove the Input shaft seal from the input shaft bearing retainer.
10. Remove the old gasket material from the front bearing retainer.

Important: Inspect the bearing retainer for any nicks or cracks that may result in a leak. Replace as nessary.

1. Install the retaining ring on the input shaft bearing.

Place the seal in the front bearing retainer.

2. Using the J 38801 seal installer install the seal.



3. Apply a thin layer of RTV sealer GM P/N 12345739 or equivalent to the mating surfaces of the input shaft bearing retainer.
4. Install the input shaft bearing retainer to the clutch housing.

Tighten
Tighten the 5 bearing retainer bolts to 29 N·m(21 lb ft).




5. Install the clutch actuator and the bolts.

Tighten
Tighten the clutch actuator bolts to 8 N·m(71 lb in)

6. Install the transmission. Refer to Transmission Replacement .
7. Install the rear propeller. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement .
8. Inspect the fluid level. Refer to Fluid Replacement .
9. Lower the vehicle.

Transmission Housing Oil Seal Replacement Rear Seal

Tools Required

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the rear propeller shaft. Refer to Two-Piece Propeller Shaft Replacement in Propeller Shaft.



3. Remove the rear oil seal from the rear case using the J 6125-1B (1) and the J 23129 (2).
4. Remove the rear oil seal from the extension housing.

1. Using the J 36503 install the new rear oil seal.
2. Install the rear propeller shaft. Refer to Two-Piece Propeller Shaft Replacement in Propeller Shaft.
3. Check the transmission oil level. Refer to Fluid Replacement .
4. Lower the vehicle.