Locking Rear Drive Axle Chatters in Turns

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Checks	Action
Lubricant is contaminated	Drain and flush the axle housing thoroughly. Refill with the correct lubricant. Refer to Lubricant Replacement - Rear Drive Axle (8.6 Inch Axle) or Lubricant Replacement - Rear Drive Axle (9.75 Inch Axle) or Lubricant Replacement - Rear Drive Axle (9.5, 10.5, and 11.5 Inch Axles) in Rear Drive Axle.
The clutch plates are deteriorated	Replace the clutch plates. Refer to Locking Differential Cam Unit Disassemble (8.6 Inch Axle) or Locking Differential Cam Unit Disassemble (9.5 Inch Axle) or Locking Differential Cam Unit Disassemble (10.5 Inch Axle) or Locking Differential Cam Unit Disassemble (11.5 Inch Axle) and Locking Differential Cam Unit Assemble (8.6 Inch Axle) or Locking Differential Cam Unit Assemble (9.5 Inch Axle) or Locking Differential Cam Unit Assemble (10.5 Inch Axle) or Locking Differential Cam Unit Assemble (11.5 Inch Axle) .

Checks

Action

Lubricant is contaminated

Drain and flush the axle housing thoroughly. Refill with the correct lubricant. Refer to Lubricant Replacement - Rear Drive Axle (8.6 Inch Axle) or Lubricant Replacement - Rear Drive Axle (9.75 Inch Axle) or Lubricant Replacement - Rear Drive Axle (9.5, 10.5, and 11.5 Inch Axles) in Rear Drive Axle.

The clutch plates are deteriorated