GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Support the frame with the hoist when you change the body mounts. If only one mount is changed, loosen and lower the entire side on which the mount in question is being replaced.

  1. Raise the vehicle on a hoist. Refer to Lifting and Jacking the Vehicle.
  2. Use jack stands or the equivalent to support the body where the mounts will be replaced.

  3. Object Number: 1351720  Size: SH
  4. Remove the bolt/cushion assembly at the number 1 and the number 2 body mount.

  5. Object Number: 1351723  Size: SH
  6. Remove the bolt/cushion assembly at the number 3 body mount, short wheel base vehicles.
  7. Remove the bolt/cushion assembly at the number 3 and the number 4 body mount, long wheel base vehicles.
  8. Disconnect or remove any wiring harness or component that may interfere with the lowering of the frame.
  9. Lower the hoist in order to leave the body supported by the jack stands.

  10. Object Number: 1351728  Size: SH
  11. Remove the upper cushions at the number 1 and the number 2 body mount.

  12. Object Number: 1351731  Size: SH
  13. Remove the upper cushions at the number 3 body mount, short wheel base vehicles.

  14. Object Number: 1351733  Size: SH
  15. Remove the upper cushions at the number 3 and the number 4 body mount, long wheel base vehicles.

Installation Procedure


    Object Number: 1351733  Size: SH
  1. Install the upper cushions to the number 3 and the number 4 body mount, long wheel base vehicles.

  2. Object Number: 1351731  Size: SH
  3. Install the upper cushion to the number 3 body mount, short wheel base vehicles.

  4. Object Number: 1351728  Size: SH
  5. Install the upper cushions to the number 1 and the number 2 body mount.
  6. Raise the hoist to allow the body mount bolts to be installed.
  7. Connect or install any wiring harness or component that was removed to allow for the lowering of the frame.

  8. Object Number: 1351720  Size: SH
  9. Install the bolt/cushion assembly to the number 1 and the number 2 body mount.

  10. Object Number: 1351723  Size: SH
  11. Install the bolt/cushion assembly to the number 3 body mount, short wheel base vehicles.
  12. Caution: Refer to Fastener Caution in the Preface section.

  13. Install the bolt/cushion assembly to the number 3 and the number 4 body mount, long wheel base vehicles.
  14. Tighten the bolts to 115 N·m (85 lb ft).

  15. Remove the jack stands.
  16. Lower the vehicle.