Transfer Case Fluid Replacement

Transfer Case Fluid Replacement

Removal Procedure

Important: When performing the following procedures, use only hand tools to remove and install the drain and fill plugs.





1. Raise and suitably support the vehicle.
2. Remove the transfer case shield, if equipped.
3. Remove the fill plug.





4. Remove the drain plug.

Installation Procedure





1. Notice: Refer to Fastener Notice in Service Precautions.

Important: Use only drain and fill plugs that are made from aluminum. Steel or brass plugs are not compatible with the magnesium case.

Install the drain plug.
^ Tighten the plug to 20 Nm (15 ft. lbs.).
2. Fill the transfer case to the bottom of the fill plug hole with Auto-Trak II, transfer case fluid, GM P/N 12378-508 (Canadian P/N 10953626).





3. Install the fill plug.
^ Tighten the plug to 20 Nm (15 ft. lbs.).
4. Install the transfer case shield, if equipped.
5. Lower the vehicle.