GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2006 🢒 Ascender - 4WD 🢒 Suspension 🢒 Air Suspension 🢒 Rear Axle Upper Control Arm Replacement

Removal Procedure

    Object Number: 731569 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Remove the wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Rear End.
  4. Raise and support the rear axle at the designed D - height. Refer to Trim Height Specifications in Suspension General Diagnosis.
  5. If equipped with air suspension, depressurize the air suspension system. Refer to Air Suspension Depressurization in Air Suspension.
  6. If equipped with air suspension, disconnect the air suspension leveling sensor link from the rear axle upper control arm.

    7. Object Number: 731576 Size: SH
  7. Remove the rear axle upper control arm to axle mounting bolt and nut.

    8. Object Number: 731610 Size: SH
  8. Remove the rear axle upper control arm to frame mounting bolt.
  9. Remove the rear axle upper control arm.

Installation Procedure

    Object Number: 731610 Size: SH
  1. Install the rear axle upper control arm.
  2. Install the rear axle upper control arm to frame mounting bolt.

    3. Object Number: 731576 Size: SH

    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 upper control arm to axle mounting nut and bolt.

    4. Tighten
    Tighten the rear axle upper control arm mounting bolts to 131 N·m (97 lb ft).


    Object Number: 731569 Size: SH
  4. If equipped with air suspension, connect the air suspension leveling sensor link to the rear axle upper control arm.
  5. Remove the rear axle support.
  6. Install the wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Rear End.
  7. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  8. Lower the vehicle.