Transfer Case Fluid Replacement

Transfer Case Fluid Replacement

Special Tools

DT-48371 Plug Wrench

Removal Procedure





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

1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
2. Reposition the underbody insulation as necessary to gain access to the fill plug.
3. Remove the fill plug (6) using the DT-48371 .




4. Remove the drain plug (8).
Note: Ensure that an approved drain pan is used when draining the transfer case.

5. Allow the transfer case to drain completely.

Installation Procedure




1. Apply sealant GM P/N 12378470, (Canadian P/N 10952622), or equivalent to the threads of the drain plug.
Caution: Refer to Component Fastener Tightening Caution (Component Fastener Tightening Caution).

2. Install the drain plug (8) and tighten to 25 Nm (18 lb ft).




3. Fill the transfer case to the bottom of the fill plug hole with Mobil LT fluid GM P/N 88861950, (Canadian P/N 88861951).
4. Install the fill plug (6) and tighten with hand plus 1.25 turns using the DT-48371 .
5. Lower the vehicle.