Rear Differential Clutch Pack Stack Height Change - keywords axle bind chatter shudder #PIP3892A - (09/11/2006)

Models: 2007 Cadillac XLR

2006-2007 Chevrolet Corvette Z06

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
When replacing the rear differential clutch packs in a 2006-2007 Chevrolet Corvette Z06 or 2007 Cadillac XLR, technicians may find a 5 plate clutch pack, also eSI will call for a 5 plate pack, but service parts come as a 4 plate pack.

Recommendation/Instructions:
A change to carbon fiber clutch plates in the above models which increased overall thickness makes it necessary to reduce the stack to a 4 plate pack. The correct stack using the new designed plates will be a 4 plate pack and will not effect performance.

Note: This change does not apply to the normal Corvette or XLR-V.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.


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