Sierra Classic 2500 4WD V8-8.1L (2007)
2. Important:
Ensure the drain hole on the boot of the rear output shaft seal is facing down toward the ground.
Using the J 37668-A, install a NEW front output shaft seal.
3. Install the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement.
4. Check the fluid level. Add fluid, if necessary.
5. Install the transfer case shield, if equipped. Refer to Transfer Case Shield Replacement.
Transfer Case Input Shaft Seal Replacement
Transfer Case Input Shaft Seal Replacement
Tools Required
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J 42738 Front Output Shaft Seal Installer
Removal Procedure
1. Remove the transfer case. Refer to Transfer Case Assembly Replacement.
2. Remove the input shaft seal, using a flat-tipped screwdriver.
Installation Procedure
