GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.

  2. Object Number: 660281  Size: SH
  3. Remove the fill plug.

  4. Object Number: 660282  Size: SH
  5. Remove the drain plug.
  6. Note: Ensure that an approved drain pan is used when draining the transfer case.

  7. Allow the transfer case to drain completely.

Installation Procedure


    Object Number: 660282  Size: SH
  1. Apply pipe sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the drain plug threads.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the drain plug and tighten to 27 N·m (20 lb ft).
  4. Fill the transfer case with the proper fluid. Refer to Approximate Fluid Capacities.

  5. Object Number: 660281  Size: SH
  6. Apply pipe sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the fill plug threads.
  7. Install the fill plug and tighten to 27 N·m (20 lb ft).
  8. Lower the vehicle. Refer to Lifting and Jacking the Vehicle.