GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 6125-B Slide Hammer
    • J 23129 Universal Seal Remover
    • J 37752 Case Seal Installer
    • J 36850 Transjel® Lubricant

Removal Procedure

  1. Raise the vehicle. Support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the transmission with a suitable hydraulic jack.
  3. Remove the transfer case from the vehicle. Refer to Transfer Case Replacement in Transfer Case.

  4. Object Number: 166331  Size: SH
  5. Remove the transfer adapter case seal (1) from the transfer adapter case using the J 23129 and the J 6125-B .
  6. Inspect the transfer adapter case for cracks and other damage. Replace as necessary.

Installation Procedure


    Object Number: 154105  Size: SH
  1. Apply a thin coat of J 36850 to the transfer adapter case seal surface.
  2. Install the new transfer adapter case seal into the transfer adapter case using a J 37752 .
  3. Apply J 36850 to the new transfer adapter case seal lip.
  4. Install the transfer case into the vehicle. Refer to Transfer Case Replacement in Transfer Case.
  5. Remove the hydraulic jack from under the transmission.
  6. Lower the vehicle.