GM Service Manual Online
For 1990-2009 cars only
  1. Inspect the engine and transmission mounts for excessive wear, damage, and/or deformities which may be altering the driveline working angle. If the engine and/or transmission mounts exhibited any of these conditions, the worn or damaged mount requires replacement.
  2. Inspect the rear drive axle damping bushings for excessive wear and/or damage which may be altering the driveline working angle. If the rear drive axle damping bushings exhibited any of these conditions, the bushings require replacement.
  3. Inspect the propeller shaft support bearing assembly for damaged rubber components, worn bearings, and/or a deformed/cracked bracket which could be affecting the angle of the propeller shafts. If the support bearing assembly exhibited any of these conditions, it requires replacement.
  4. Inspect the propeller shaft support bearing assembly for looseness. Reinstall the assembly correctly to ensure proper alignment of the support bearing assembly.