GM Service Manual Online
For 1990-2009 cars only

Cause

Correction

Important: Inspect the differential oil level prior to performing system diagnosis. Refer to Rear Axle Lubricant Level Inspection .

Worn or damaged differential mount and/or mounts.

Replace the differential mount and/or mounts as required. Refer to Differential Carrier Bushing Replacement - Rear in Rear Drive Axle.

Incorrect differential oil.

Replace with the correct differential oil. Refer to Lubrication Specifications .