Checking Transfer Case Oil Level

1. Raise and suitably support vehicle.





2. Remove transfer case oil level filler plug from transfer case.

Inspect
- Transfer case oil level. Oil level should be even with the bottom of the oil level/filler plug hole. If the oil level is below the bottom of the oil level/filler plug hole, adjust oil level accordingly with 75W-90 GL4 lubricant, or equivalent, until the oil level reaches the bottom of the oil level/filler plug hole.

3. Apply GM P/N 12346004, or equivalent, to the threaded portion of the transfer case oil level/filler plug.
4. Install transfer case oil level filler plug into transfer case.
- Transfer case oil level/filler plug to 23 Nm (17 ft. lbs.)
5. Lower vehicle.