GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Note: In the following service procedures, the left side is shown, the right side is similar.

  1. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.

  2. Object Number: 1861008  Size: MH

    Note: If removing the upper control arm to service scribe a line on the front adjuster cam to aid in the realignment of the control arm.

  3. Scribe a reference mark on the adjuster cam and the bracket to aid in installing the upper control arm.

  4. Object Number: 1860838  Size: SH
  5. Remove the speed sensor wiring harness retaining clips (1) and (2) from the upper control arm.
  6. Position a jack stand under the lower control arm.

  7. Object Number: 1860854  Size: SH
  8. Remove the upper control arm mounting nut (1) and bolt (2).

  9. Object Number: 1861067  Size: MH
  10. Use a wrench to hold the adjuster cam bolt.

  11. Object Number: 1861988  Size: MH
  12. Remove the rear upper adjuster cam bolt (1).
  13. Remove the rear upper adjuster cam (2).

  14. Object Number: 1861001  Size: MH
  15. Remove front the adjuster cam nut (1).
  16. Remove the adjuster cam (2).
  17. Remove the adjuster cam bolt (3).

  18. Object Number: 1860865  Size: SH
  19. Rotate the rear knuckle down to gain removal clearance for the upper control arm.

  20. Object Number: 1860918  Size: SH
  21. Remove the upper control arm (1).

Installation Procedure


    Object Number: 1860918  Size: SH
  1. Install the upper control arm (1) in the mounting bracket.

  2. Object Number: 1860865  Size: SH
  3. Rotate the knuckle assembly back into the proper position.

  4. Object Number: 1861001  Size: MH
  5. Position the front adjuster cam (2) in the mounting bracket.
  6. Install the adjuster cam bolt (3).
  7. Finger tighten the front adjuster cam nut (1).

  8. Object Number: 1861988  Size: MH
  9. Position the rear adjuster cam (2) in the mounting bracket.
  10. Finger tighten the rear adjuster cam nut (1).
  11. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1860854  Size: SH
  12. Install the upper control arm bolt (2) and nut (1).
  13. Tighten
    Tighten the bolt to 100 N·m (74 lb ft) plus 90 degrees.

  14. Remove the jack stand from under the lower control arm.

  15. Object Number: 1860838  Size: SH
  16. Install the speed sensor wiring harness retaining clips (1) and (2) on the upper control arm.

  17. Object Number: 1861008  Size: MH
  18. Align the reference marks on the adjuster cam and bracket.

  19. Object Number: 1861067  Size: MH
  20. Using a wrench to hold the adjuster cam bolt in place, tighten all the adjuster cam nuts.
  21. Tighten
    Tighten the nuts to 140 N·m (103 lb ft).

  22. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
  23. Verify wheel alignment. Refer to Wheel Alignment Specifications.