Lubricant Level Inspection
Repair Instructions1. Raise the vehicle. Support the vehicle. Refer to Vehicle Lifting.
2. Remove the rear axle housing oil level/filler plug (1) from the rear axle housing.
3. Inspect the rear axle oil level. The oil level should be even with the bottom of the rear axle housing oil level/filler plug hole. If the oil level is low and no oil leaks exist, adjust the oil using 80W-90 GI-5 lubricant GM P/N 12345977, or equivalent.
Notice: Refer to Fastener Notice Service Precautions.
4. Install the rear axle housing oil level/filler plug into the rear axle housing.
^ Tighten the rear axle housing oil level/filler plug to 43 Nm (32 ft. lbs.).
5. Lower the vehicle.