Fluid - Transfer Case: Service and Repair

Transfer Case Fluid Replacement

Removal Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair) .




2. Remove the drain plug (2).
3. Remove the fill plug (1).



Installation Procedure





1. Clean the drain plug.

Notice: Refer to Component Fastener Tightening Notice (Component Fastener Tightening Notice) .

2. Install the drain plug (2).

Tighten the drain plug to 39 N.m (29 lb ft).

3. Fill the transfer case with synthetic gear lubricant GM P/N 89021677 (Canadian P/N 89021678) to the bottom of the fill plug, or 540 ml (18.2 oz).
4. Install the fill plug (1).

Tighten the fill plug to 39 N.m (29 lb ft).

5. Lower the vehicle.