GM Service Manual Online
For 1990-2009 cars only

Locking Rear Drive Axle Chatters in Turns for Chevrolet TrailBlazer - 4WD 2008

Checks

Action

The lubricant is contaminated.

Drain and flush the axle housing thoroughly. Refill with the correct lubricant. Refer to Rear Axle Lubricant Replacement.

The clutch plates are deteriorated.

Replace the clutch plates. Refer to the following: