K 1500 Truck 4WD V8-5.3L VIN T (2000)
1. Raise the vehicle. Refer to Vehicle Lifting.
2. If equipped, remove the transfer case shields. Refer to Shield Replacement.
3. Remove front propeller shaft. Refer to Propeller Shaft Replacement.
4. Remove the front output shaft seal.
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Remove the inner sleeve of the seal first in order to remove the seal from the transfer case
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Remove the outer area of the seal after removal of the inner sleeve of the seal.
Installation Procedure
1. Install the seal.
1.1. Lubricate the seal mating surfaces with Dexron(R) 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 Propeller Shaft Replacement.
4. If equipped, install the transfer case shields. Refer to Shield Replacement.
5. Lower the vehicle.
