GM Service Manual Online
For 1990-2009 cars only

Checks

Action

Worn differential side gears and pinions

Replace the differential side gears and pinions. Refer to Differential Overhaul .

Worn differential spider

Replace the spine gears. Refer to Differential Overhaul .

Worn axle shaft splines

Replace the axle shaft. Refer to Rear Axle Shaft Replacement .