GM Service Manual Online
For 1990-2009 cars only

Important: Follow the balance procedure in the order listed in the following steps. Powertrain mounts must be tightened in sequence.


    Object Number: 1578541  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Loosen, but DO NOT REMOVE the front transmission mount through bolt.

  3. Object Number: 1578542  Size: SH
  4. Loosen, but DO NOT REMOVE the rear transmission mount through bolt.
  5. Rock the powertrain vigorously from front to rear and allow the powertrain to settle.
  6. Notice: Refer to Fastener Notice in the Preface section.

  7. Tighten the rear transmission mount through bolt.
  8. Tighten
    Tighten the bolt to 90 N·m (66 lb ft).


    Object Number: 1578541  Size: SH
  9. Tighten the front transmission mount through bolt.
  10. Tighten
    Tighten the bolt to 90 N·m (66 lb ft).

  11. Lower the vehicle.