GM Service Manual Online
For 1990-2009 cars only

Tools Required

SA9155S Strut Spring Compressor

Removal Procedure

  1. Remove the shock carrier assembly. Refer to Shock Absorber Replacement .

  2. Object Number: 891985  Size: SH
  3. Mount the shock carrier assembly into the SA9155S .
  4. Mount the lower portion of the strut to the SA9155S .
  5. Compress the spring in order to unload the upper spring supports.

  6. Object Number: 893025  Size: SH
  7. Using a wrench and a socket, remove the upper shock shaft nut.
  8. Release the spring compressor tension from the spring in order to remove the shock suspension support carrier.
  9. Remove the remaining components from the shock absorber. Note there location for assembly.

  10. Object Number: 891987  Size: SH
  11. Inspect the inner and outer shock absorber bushings for damage or deterioration and replace if necessary.
  12. Inspect the shock bumper for damage or deterioration and replace if necessary.
  13. Inspect the spring upper insulator and replace if necessary.
  14. If replacing the shock, remove the shock from the SA9155S .

Installation Procedure

  1. If replacing the shock, mount the shock on the SA9155S .
  2. Extend the shock to its travel limit.

  3. Object Number: 891987  Size: SH

    Important: Make sure that the spring is located in the correct position.

  4. Install the shock components as noted during removal.
  5. Compress the spring while guiding the shock absorber shaft through the upper mount. The spring is properly compressed when the upper washer and shaft nut can be installed.
  6. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 893025  Size: SH
  7. Using a wrench and a socket, install the upper washer and shaft nut.
  8. Tighten
    Tighten the Upper shaft nut to 20 N·m (15 lb ft).


    Object Number: 891985  Size: SH
  9. Release the spring tension.
  10. Remove the shock carrier assembly from the SA9155S .
  11. Install the shock carrier assembly. Refer to Shock Absorber Replacement .