GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 42738 Seal Installer
    • J 36825 Output Shaft Oil Seal Remover

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the transfer case from the adapter. Refer to Transfer Case Assembly Replacement .

  3. Object Number: 819621  Size: SH
  4. Using the J 36825 remove the input shaft seal from the transfer case by threading the self tapping screw (2) into the seal.

Installation Procedure


    Object Number: 819657  Size: SH

    Important: When installing the input shaft seal, make sure that the part numbers on the seal are facing outward (toward the technician). The input shaft seal should be even with the surface of the transfer case after installation.

  1. Position the seal on the input shaft.
  2. Using the J 42738 , install the input shaft seal in the transfer case.
  3. Install the transfer case to the adapter. Refer to Transfer Case Assembly Replacement .
  4. Lower the vehicle. Refer to Lifting and Jacking the Vehicle .