GM Service Manual Online
For 1990-2009 cars only

Steering Knuckle Replacement 4WD

Special Tools

    • J 24319-B Steering Linkage and Tie Rod Puller
    • J 43631 Ball Joint Remover

Removal Procedure


    Object Number: 731551  Size: SH
  1. Remove the tire and wheel center cap.
  2. Remove the drive axle nut.

  3. Object Number: 687432  Size: SH
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  5. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation.
  6. Remove the wheel hub and bearing. Refer to Front Wheel Hub, Bearing, and Seal Replacement.
  7. Remove and discard the outer tie rod retaining nut.

  8. Object Number: 643351  Size: SH
  9. Disconnect the outer tie rod from the steering knuckle using J 24319-B .

  10. Object Number: 744318  Size: SH
  11. Remove the brake hose bracket retaining bolts.
  12. Remove the brake hose bracket from the steering knuckle.

  13. Object Number: 731542  Size: SH
  14. Remove and discard the upper control arm to the steering knuckle pinch bolt and nut.
  15. Disconnect the upper control arm from the steering knuckle.

  16. Object Number: 742730  Size: SH
  17. Remove and discard the lower ball joint retaining nut.

  18. Object Number: 752181  Size: SH
  19. Remove the steering knuckle from the lower control arm using J 43631 .
  20. Remove the steering knuckle from the vehicle.

Installation Procedure


    Object Number: 742730  Size: SH
  1. Install the steering knuckle to the lower control arm.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install a new lower ball joint retaining nut and tighten to 110 N·m (81 lb ft).

  4. Object Number: 731542  Size: SH
  5. Connect the upper control arm to the steering knuckle.
  6. Install a new upper control arm pinch bolt and nut and tighten the bolt to 40 N·m (30 lb ft).

  7. Object Number: 744318  Size: SH
  8. Install the brake hose bracket to the steering knuckle.
  9. Install the brake hose bracket retaining bolts and tighten to 10 N·m (89 lb in).

  10. Object Number: 687435  Size: SH
  11. Install the outer tie rod to the steering knuckle.
  12. Install the new outer tie rod retaining nut and tighten to 60 N·m (44 lb ft).

  13. Object Number: 731551  Size: SH
  14. Install the wheel hub and bearing. Refer to Front Wheel Hub, Bearing, and Seal Replacement.
  15. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation.
  16. Lower the vehicle.
  17. Install the drive axle nut and tighten to 140 N·m (103 lb ft).
  18. Check the front wheel alignment. Refer to Wheel Alignment Specifications.