GM Service Manual Online
For 1990-2009 cars only

Shock Absorber Replacement Pick-up

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Disconnect the electrical connector if equipped with Selectable Ride.

  3. Object Number: 348391  Size: SH
  4. Remove the upper shock absorber nut and the bolt.
  5. Remove the lower shock absorber nut and the bolt.
  6. Remove the shock absorber.

Installation Procedure


    Object Number: 348391  Size: SH
  1. Install the shock absorber.
  2. Install the upper shock absorber nut and bolt.
  3. 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 lower shock absorber nut and bolt.
  5. Tighten
    Tighten the nuts to 95 N·m (70 lb ft).

  6. Connect the electrical connector if equipped with Selectable Ride.
  7. Remove the safety stands.
  8. Lower the vehicle.

Shock Absorber Replacement 15 Series Utility

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  2. Object Number: 622089  Size: SH
  3. Disconnect the electrical connector and air line if equipped with Real Time Damping (RTD).
  4. Support the rear axle.
  5. Disconnect the RTD sensor (if equipped). Refer to Electronic Suspension Rear Position Sensor Replacement - Left Side or Electronic Suspension Rear Position Sensor Replacement - Right Side in Real Time Damping (RTD).

  6. Object Number: 582394  Size: SH
  7. Remove the upper shock absorber nut and the bolt.
  8. Remove the lower shock absorber nut and the bolt.
  9. Remove the shock absorber.

Installation Procedure


    Object Number: 582394  Size: SH
  1. Install the shock absorber.
  2. 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.

  3. Install the upper shock absorber nut and bolt.
  4. Install the lower shock absorber nut and bolt.
  5. Tighten
    Tighten the nuts to 95 N·m (70 lb ft).


    Object Number: 622089  Size: SH
  6. Connect the electrical connector and air line if equipped with RTD.
  7. Connect the RTD sensor, if equipped. Refer to Electronic Suspension Rear Position Sensor Replacement - Left Side or Electronic Suspension Rear Position Sensor Replacement - Right Side in Real Time Damping (RTD).
  8. Remove the support from the rear axle.
  9. Remove the safety stands.
  10. Lower the vehicle.

Shock Absorber Replacement 25 Series Utility

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the rear axle.

  3. Object Number: 623006  Size: SH
  4. Disconnect the Real Time Damping (RTD) electrical connector at the pigtail connector left side only, if equipped.
  5. Disconnect the RTD electrical connector at the top of the right side shock, if equipped.
  6. Disconnect the RTD sensor (if equipped). Refer to Electronic Suspension Rear Position Sensor Replacement - Left Side or Electronic Suspension Rear Position Sensor Replacement - Right Side in Real Time Damping (RTD).

  7. Object Number: 582394  Size: SH
  8. Remove the upper shock absorber nut and the bolt.
  9. Remove the lower shock absorber nut and the bolt.
  10. Remove the shock absorber.

Installation Procedure


    Object Number: 582394  Size: SH
  1. Install the shock absorber.
  2. 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.

  3. Install the upper shock absorber nut and bolt.
  4. Install the lower shock absorber nut and bolt.
  5. Tighten
    Tighten the nuts to 95 N·m (70 lb ft).

  6. Remove the rear axle support.
  7. Connect the RTD sensor (if equipped). Refer to Electronic Suspension Rear Position Sensor Replacement - Left Side or Electronic Suspension Rear Position Sensor Replacement - Right Side in Real Time Damping (RTD).
  8. Connect the RTD electrical connector at the top of the right side shock, if equipped.

  9. Object Number: 623006  Size: SH
  10. Connect the RTD electrical connector at the pigtail connector left side only (if equipped).
  11. Remove the safety stands.
  12. Lower the vehicle.

Shock Absorber Replacement 15 Series Utility w/G65

Removal Procedure

    Important: This shock absorber is a very high pressure gas charged component. Never attempt to tether or manually compress the shock. Replacement shocks are supplied in the fully extended position.


    Object Number: 582394  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle General Information.
  2. Support the rear axle.
  3. Remove the upper shock absorber nut and the bolt.
  4. Remove the lower shock absorber nut and the bolt.
  5. Lower the rear axle to allow the removal of the shock absorber.
  6. Remove the shock absorber.

Installation Procedure


    Object Number: 582394  Size: SH
  1. Install the shock absorber.
  2. Install the upper shock absorber nut and bolt.
  3. Raise the rear axle to allow the installation of the lower through bolt.
  4. 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.

  5. Install the lower shock absorber nut and bolt.
  6. Tighten
    Tighten the nuts to 95 N·m (70 lb ft).

  7. Remove the support from the rear axle.
  8. Remove the safety stands.
  9. Lower the vehicle.