GM Service Manual Online
For 1990-2009 cars

Removal Procedure

Tools Required

    • J 6125-B Slide Hammer
    • J 23129 Converter Housing Seal and Extension Housing Oil Seal Remover
  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.

  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

Tools Required

    • J 35538 Adapter Case Seal Installer
    • J 36850 Transjel® Transmission Assembly Lubricant

    Object Number: 166339  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 (1) into the transfer adapter case using a J 35538 .
  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 Driveline/Axle.
  5. Remove the hydraulic jack from under the transmission.
  6. Lower the vehicle.