GM Service Manual Online
For 1990-2009 cars only

Lower Control Arm Replacement RWD

Special Tools

    • J 43631 Ball Joint Remover
    • J 45851 Ball Joint Separator Protector Adapters

Removal Procedure


    Object Number: 830506  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation.
  3. Remove the front coil spring. Refer to Front Coil Springs Replacement.
  4. Remove and discard the lower ball joint retaining nut.

  5. Object Number: 853943  Size: SH
  6. Disconnect the lower ball joint from the steering knuckle using J 43631 and J 45851 .
  7. Remove the lower control arm.

Installation Procedure


    Object Number: 830506  Size: SH
  1. Install the lower control arm.
  2. Connect the lower ball joint to the steering knuckle.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the new lower ball joint retaining nut and tighten to 100 N·m (74 lb ft).
  5. Install the front coil spring. Refer to Front Coil Springs Replacement.
  6. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation.
  7. Lower the vehicle.
  8. Check the wheel alignment. Refer to Wheel Alignment Measurement.

Lower Control Arm Replacement 4 Wheel Drive

Special Tools

    • J 43631 Ball Joint Remover
    • J 45851 Ball Joint Separator Protector Adapters

Removal Procedure


    Object Number: 830489  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation.
  3. Remove the torsion bar. Refer to Torsion Bar and Support Assembly Replacement.
  4. Remove the stabilizer link. Refer to Stabilizer Shaft Link Replacement.
  5. Remove the wheel drive shaft. Refer to Wheel Drive Shaft Replacement.
  6. Remove the shock absorber lower retaining nut and bolt. Refer to Shock Absorber Replacement.

  7. Object Number: 830506  Size: SH
  8. Remove and discard the lower ball joint retaining nut.

  9. Object Number: 853943  Size: SH
  10. Using the J 43631 remover and the J 45851 adapters , remove the lower ball joint from the steering knuckle.

  11. Object Number: 830516  Size: SH
  12. Remove the lower control arm nuts and the washers.
  13. Remove the lower control arm bolts.
  14. Remove the lower control arm.

Installation Procedure


    Object Number: 830516  Size: SH
  1. Install the lower control arm.
  2. Connect the lower ball joint to the steering knuckle.
  3. Install the lower control arm mounting bolts.
  4. Caution: Refer to Fastener Caution in the Preface section.

  5. Install the lower control arm mounting nuts and the washers.
  6. • W/O 14050/12300 GVW, tighten the nuts to 155 N·m (114 lb ft).
    • With 14050/12300 GVW, tighten the nuts to 120 N·m (89 lb ft) +175°.
    • With Diesel Engine, tighten the nuts to 120 N·m (89 lb ft) +175°.

    Object Number: 830506  Size: SH
  7. Install the new lower ball joint retaining nut and tighten to 100 N·m (74 lb ft).

  8. Object Number: 830489  Size: SH
  9. Install the shock absorber in the lower control arm. Refer to Shock Absorber Replacement.
  10. Install the wheel drive shaft. Refer to Wheel Drive Shaft Replacement.
  11. Install the stabilizer link. Refer to Stabilizer Shaft Link Replacement.
  12. Install the torsion bar. Refer to Torsion Bar and Support Assembly Replacement.
  13. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation.
  14. Remove the support and lower the vehicle.
  15. Check the wheel alignment. Refer to Wheel Alignment Measurement.