Driveline Working Angles Adjustment: Notes
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
Rear axle wind-up may cause launch shudder even when all of the working angles are within specifications. Rear axle wind-up occurs when heavy torque during acceleration causes the pinion nose to point upward. In order to compensate for axle wind-up, the transmission output shaft can be raised slightly. Perform a road test after each shim to determine the affects on the vibration concern. Add shims until the road test indicates that the shudder is eliminated.