GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Optra 🢒 Suspension 🢒 Rear Suspension 🢒 Lower Control Front Arm Replacement

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the rear tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
  3. For vehicles equipped with the antilock braking system (ABS), disconnect the rear wheel speed sensor electrical connector and remove the ABS harness from the lower control front arm.
  4. Use paint in order to mark the position of the adjuster cam relative to the control arm and the rear crossmember.

    5. Object Number: 1290737 Size: SH
  5. Remove the lower control front arm bolt from the rear crossmember.
  6. Remove the lower control front arm bolt from the rear knuckle.
  7. Remove the lower control front arm from the vehicle.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1290738 Size: SH
  1. Install the lower control front arm onto the rear knuckle with the bolt.

    2. Tighten
    Tighten the lower control front arm-to-knuckle bolt to 120 N·m (89 lb ft).

    Important: Do not tighten the lower control front arm-to-rear crossmember bolt yet. Tightening the bolt is part of the rear toe adjustment procedure.

  2. Install the lower control front arm onto the rear crossmember with the bolt.
  3. Align the match marks on the adjuster cam in order to maintain the rear toe.
  4. For vehicles equipped with ABS, install the ABS harness onto the lower control front arm and connect the rear wheel speed sensor electrical connector.
  5. Install the rear tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
  6. Perform a rear toe adjustment and tighten the lower control front arm-to-rear crossmember bolt. Refer to Rear Toe Adjustment.
  7. Lower the vehicle.