GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2009 🢒 Astra 🢒 Suspension 🢒 Front Suspension 🢒 Steering Knuckle Replacement

Removal Procedure
  1. Remove the front wheel bearing and hub. Refer to Front Wheel Bearing and Hub Replacement.
  2. Disconnect the lower ball joint and separate the steering knuckle from the lower control arm. Refer to Lower Control Arm Replacement.
  3. Disconnect the outer tie rod end from the steering knuckle. Refer to Steering Linkage Outer Tie Rod Replacement.

    4. Object Number: 1937811 Size: SH
  4. Remove the steering knuckle from the spring strut support tube.
    5. • Remove the 2 nuts.
    • Remove the 2 bolts (1) from the spring strut support tube.
    • Remove the steering knuckle.

Installation Procedure

    Note: Tightening to torque does not take place until camber has been adjusted.

  1. Install the steering knuckle to the spring strut support tube.
    2. • Use the 2 new bolts.
    • Install the 2 new nuts.
  2. Connect the lower ball joint to the steering knuckle. Refer to Lower Control Arm Replacement.
  3. Attach the outer tie rod end to the steering knuckle. Refer to Steering Linkage Outer Tie Rod Replacement.
  4. Install the front wheel bearing and hub. Refer to Front Wheel Bearing and Hub Replacement.
  5. Adjust the camber. Refer to Front Camber Adjustment.

    6. Caution: Refer to Fastener Caution in the Preface section.

  6. Tighten the 2 screwed joint, spring strut support tube to the steering knuckle, in 3 stages.

    7. Tighten

    1. Tighten the 2 spring strut support tube to steering knuckle bolted connections to 50 N·m (37 lb ft).
    2. Tighten the 2 new spring strut support tube to steering knuckle screwed joint to 85 N·m (62 lb ft).
    3. Tighten the 2 new spring strut support tube to steering knuckle screw connection an additional 75 degrees plus 15 degrees.