Cause | Correction |
---|---|
Inspect for the proper gear oil levels prior to performing system diagnosis. Operate the vehicle turning in tight circles in both left and right directions. Moan, groan, chatter, or a pulsing type concern may indicate a pump or clutch pack condition within the axle assembly. | |
Worn or loose rear axle mounts | Repair or replace as required. |
Worn axle shaft constant velocity joints | Replace the constant velocity joints as required. |
Worn wheel bearings | Replace the wheel bearings as required. |
Incorrect gear oil | Replace with gear oil GM P/N United States 12378514, GM P/N Canada 88901045. |
Worn differential side and/or idler gears and worn cross pin | Replace the gears and pin as required. |
Worn clutch plates | Replace the clutch drum. |