GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2008 🢒 G8 🢒 Suspension 🢒 Suspension General Diagnosis 🢒 Front Lower Control Front Arm Replacement

Tools Required

    • J-42188-B .
    • E7115 .

Removal Procedure

    Caution: Refer to Safety Glasses Caution in the Preface section.

    Caution: Refer to Vehicle Lifting Caution in the Preface section.

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the front wheel. Refer to Tire and Wheel Removal and Installation.

    3. Object Number: 2144711 Size: SH
  3. Loosen the caster arm to steering knuckle retaining nut (1) about two turns.

    4. Object Number: 2144712 Size: SH
  4. Using J-42188-B  (1) disconnect the caster arm (1) from the steering knuckle (2).

    5. Object Number: 2144713 Size: SH
  5. Remove and discard the caster arm to steering knuckle retaining nut (3).
  6. Separate the caster arm (1) from the steering knuckle (2).

    7. Object Number: 2152069 Size: SH
  7. Remove and discard the caster arm to subframe retaining bolt (2).
  8. Remove the offset washer (1).
  9. Remove the end plate with encapsulated retaining nut to subframe retainer (4).
  10. Remove and discard the end plate with encapsulated retaining nut (3).

    11. Object Number: 2004710 Size: SH
  11. Remove the caster arm (1) from the subframe (2).

Installation Procedure

    Object Number: 2004710 Size: SH
  1. Install the NEW caster arm (1) to the subframe (2).

    2. Object Number: 2152069 Size: SH

    Important: The caster arm to subframe retaining bolt (2) is not to be fully tightened at this stage.

  2. Install the NEW end plate with encapsulated retaining nut (3).
  3. Install the end plate with encapsulated retaining nut to subframe retainer (4).
  4. Install the offset washer (1).
  5. Install the New caster arm to subframe retaining bolt (2).

    6. Object Number: 1949942 Size: SH
  6. Install the caster arm (1) to the steering knuckle (2).

    7. Notice: Refer to Fastener Notice in the Preface section.

  7. Install the NEW caster arm to steering knuckle retaining nut (3).

    8. Tighten

        • First Pass: Tighten the nut to 40 N·m (30 lb ft).
        • Final Pass: Tighten the nut an additional 60 degrees using E7115 .
  8. Install the front wheel. Refer to Tire and Wheel Removal and Installation.
  9. Lower the vehicle.

    10. Object Number: 2152070 Size: SH
  10. Bounce the vehicle several times to settle the suspension.
  11. Check and adjust the wheel alignment. Refer to Wheel Alignment Measurement in Wheel Alignment.
  12. Tighten the caster arm to subframe retaining bolt (1).

    13. Tighten

        • First Pass: Tighten the bolts to 50 N·m (30 lb ft).
        • Final Pass: Tighten the bolts an additional 120 degrees using E7115