GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

Engine Mounts

    â€¢ Wear
    â€¢ Looseness

Differential Assembly

    â€¢ The pinion shaft is worn.
    â€¢ The side gear splines backlash is excessive.

Drive Axle Inboard Joints

    â€¢ Wear
    â€¢ Damage