GM Service Manual Online
For 1990-2009 cars only

Tie Rod Replacement Twist Axle

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. If the vehicle is equipped with automatic level control, perform the following steps:
  3. 2.1.  Disconnect the automatic level control sensor electrical connector.

            Important: Do NOT disconnect the automatic level control sensor link from the sensor arm.

    2.2. Disconnect the height sensor link from the rear axle tie rod.

    Object Number: 379674  Size: SH
  4. Remove the rear axle tie rod bolts.
  5. Remove the rear axle tie rod from the vehicle.

Installation Procedure


    Object Number: 379674  Size: SH
  1. Install the rear axle tie rod to the vehicle.
  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 rear axle tie rod bolt to the vehicle.
  4. Tighten

        • Tighten the rear axle tie rod bolt to the body to 135 N·m (100 lb ft).
        • Tighten the rear axle tie rod bolt to the axle to 125 N·m (92 lb ft).
  5. If the vehicle is equipped with automatic level control, perform the following steps:
  6.         Notice: When you are servicing the automatic level control sensor link, ensure that the sensor link and the sensor arm are not damaged. Ensure the sensor arm and the sensor link are properly oriented. Improper orientation of the sensor arm and the sensor link may cause damage to the automatic level control system or the vehicle.

    3.1. Install the height sensor link to the rear axle tie rod.
    3.2. Connect the automatic level control sensor electrical connector.
  7. Lower the vehicle.

Tie Rod Replacement IRS

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

  3. Object Number: 629245  Size: SH
  4. Remove the tie rod bolt.
  5. Remove the tie rod nut.
  6. Remove the tie rod.

Installation Procedure


    Object Number: 629245  Size: SH
  1. Install the tie rod.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the tie rod nut.
  4. Tighten
    Tighten the tie rod nut to 80 N·m (59 lb ft).

  5. Install the tie rod bolt.
  6. Tighten
    Tighten the tie rod bolt to 90 N·m (66 lb ft).

  7. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  8. Adjust the rear toe angle. Refer to Rear Toe Adjustment in Wheel Alignment.
  9. Lower the vehicle.