GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 247024  Size: SH
  1. Set the parking brake.
  2. Block the vehicle's rear wheels.
  3. Raise the frame until the front tires clear the floor. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Support the axle using a jack. Raise the axle high enough in order to allow the spring to clear the brackets when you remove the spring. Refer to Lifting and Jacking the Vehicle in General Information.
  5. Important: Do not use the front crossmember to support the vehicle or the crossmember may buckle.

  6. Support the frame using suitable safety stands.
  7. Remove the following components from the lower mounting brackets:
  8. • The nuts
    • The washers
    • The insulators
    • The shock absorbers
  9. Remove the insulators and the washers from the shock absorber lower stem.

  10. Object Number: 247026  Size: SH
  11. Remove the nuts from the front and rear eye bolts. Loosen the upper rear shackle bolt in order to allow the hanger to pivot.

  12. Object Number: 247479  Size: MH
  13. Remove the nuts and the U-bolts. Lower the axle and the tie rod far enough in order to relieve the tension on the spring.
  14. Remove the front eye bolt.
  15. Remove the rear eye bolt.
  16. Remove the following components from the vehicle:
  17. • The spring
    • The spring spacers
    • The U-bolt spacers

Installation Procedure


    Object Number: 247026  Size: SH

    Important: Assemble all of the components and remove all of the jacks and lifting devices before you tighten the suspension fasteners.

  1. Install the spring.
  2. Install the rear eye bolt and nut.
  3. 2.1. Raise the axle and the tie rod in order to support the spring.
    2.2. Install the spring spacers and the U-bolt spacers on the spring.
    2.3. Align the spring center bolt to the axle.

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Install the front eye bolt and nut.
  5. Tighten
    Tighten the eye bolts to 330 N·m (243 lb ft).


    Object Number: 247479  Size: MH
  6. Install the U-bolts and the nuts.
  7. Tighten
    Tighten the U-bolt nuts to 400 N·m (295 lb ft).


    Object Number: 247024  Size: SH
  8. Install the flat washer and the insulator onto the shock absorber lower stem.
  9. Install the shock absorber into the lower mounting bracket .
  10. Install the following components:
  11. • The insulators
    • The flat washers
    • The nut

    Tighten
    Tighten the lower shock absorber nut to 84 N·m (62 lb ft).

  12. Remove the safety stands.
  13. Lower the vehicle.