GM Service Manual Online
For 1990-2009 cars only

Inspect

Causes

Wheels or Tires

Imbalance or improper inflation

Front Wheel Bearings

Wear or damage

Propeller Shaft

Excessive drive line angle

Ring and Pinion Gears

    â€¢ Incorrect backlash
    â€¢ Incorrect pinion depth
    â€¢ Wear or damage