Transfer Case Output Shaft Seal Replacement Rear Output Shaft Seal

Tools Required

J 29162 Rear Output Shaft Seal Installer.

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. If equipped, remove the transfer case shields. Refer to Shield Replacement .
3. Remove rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement in Propeller Shaft.



4. Remove the rear output shaft seal.



5. Inspect the rear output shaft bushing for scoring or wear.
6. If the vehicle is equipped with a light duty transfer case, remove the rear output shaft bushing if required, using the J 45380 .

•	Install the finger section of the J 45380 in front of the bushing.

•	Install the tube and forcing screw to the finger section. Ensure the forcing screw is backed out.

•	Using a wrench on the forcing screw, remove the rear output shaft bushing.

7. If the vehicle is equipped with a super heavy duty transfer case, refer to Transfer Case Replacement .

1. If the vehicle is equipped with a light duty transfer case, install a NEW rear output shaft bushing, if required using the J 45380

•	Install the bushing or the finger section of the J 45380 .

•	Install the finger section to the main body of the J 45380 .

•	Position the bushing and tool to the case.

•	Using a hammer and the J 45380 , install the bushing.

2. If the vehicle is equipped with a super heavy duty transfer case, remove the transfer case. Refer to Transfer Case Replacement .



3. Install the seal.

3.1.	Lubricate the seal mating surface with DEXRON® III oil GM P/N 12346143.

3.2.	Install the seal using the J 29162 .

4. Install the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement in Propeller Shaft.
5. Check the transfer case oil level and add oil as necessary. Refer to Oil Replacement .
6. If equipped, install the transfer case shields. Refer to Shield Replacement .
7. Lower the vehicle.

Transfer Case Output Shaft Seal Replacement Front Output Shaft Seal

Tools Required

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. If equipped, remove the transfer case shields. Refer to Shield Replacement .
3. Remove front propeller shaft. Refer to Front Propeller Shaft Replacement in Propeller Shaft.



4. Remove the front output shaft seal.

•	Remove the inner sleeve of the seal first in order to remove the seal from the transfer case.

•	Remove the outer area of the seal after removal of the inner sleeve of the seal.

Important: When performing the following service procedure, J 43484 and J 35870 are not interchangeable. Use the proper tool with the proper front output shaft seal.

1. Install the seal.

1.1.	Lubricate the seal mating surfaces with Dexron® III oil GM P/N 12346143.

1.2.	Install the seal using the J 35870 for installation of start of production to midyear 1999 seal, or J 43484 for installation of midyear 1999 and later seal.

1.3.	Ensure the seal is positioned straight during installation.

2. Check the transfer case oil level and add oil as necessary. Refer to Oil Replacement .
3. Install the front propeller shaft. Refer to Front Propeller Shaft Replacement in Propeller Shaft.
4. If equipped, install the transfer case shields. Refer to Shield Replacement .
5. Lower the vehicle.