GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

Case Extension

Axle support bushing worn

Engine and/or Transmission Mounts

    â€¢ Weak
    â€¢ Misaligned
    â€¢ Oil damage
    â€¢ Physical damage

Output Shaft

Out of balance

Torque Converter

    â€¢ Out of balance
    â€¢ Internal failure

Transmission/Engine

Misaligned

Turbine Shaft

Worn bushing