Fluid - Transfer Case: Service and Repair

Transfer Case Fluid Replacement
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting.





2. Remove the drain plug (1).





3. Remove the fill plug (1).

Installation Procedure





1. Clean the drain plug and apply sealant GM P/N 12346004 (Canadian P/N 10953480) to the threads.

2. Notice: Refer to Component Fastener Tightening Notice in Service Precautions.

Install the drain plug (1).
^ Tighten the drain plug to 24 (18 ft. lbs.).
3. Fill the transfer case with synthetic gear lubricant GM P/N 12378514 (Canadian P/N 88901045) to the bottom of the fill plug, or 540 ml (18.2 oz).





4. Clean the fill plug and apply adhesive GM P/N 12345493 (Canadian P/N 10953488) to the threads.
5. Install the fill plug (1).
^ Tighten the fill plug to 15 Nm (11 ft. lbs.).
6. Lower the vehicle.