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Home >> Pontiac >> 2008 >> G8 Base >> Repair and Diagnosis >> Suspension >> Wheel Alignment System >> Repair Instructions >> Front Caster and Camber Adjustment >> Front Caster and Camber Adjustment - Up to xx/xx

Front Caster and Camber Adjustment - Up to xx/xx

    CAUTION: Refer to Vehicle Lifting Caution .
  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. Fig 1: Identifying Strut Assembly To Steering Knuckle Retaining Bolts, Nuts & Washers
    GM1955530Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The strut assembly to steering knuckle retaining bolts (3), nuts (1) and washers (2) are single use parts. They must be discarded after removal.
  3. Remove the strut assembly to steering knuckle retaining bolts (3), nuts (1) and washers (2).

    Discard the bolts, nuts and washers.

    4. IMPORTANT: The strut assembly to steering knuckle retaining bolts (2) and nuts (1) are not to be fully tightened until after the front camber has been adjusted.
  4. Install NEW strut assembly to steering knuckle retaining bolts (3), washers (2) and nuts (1).

    Do not fully tighten at this stage.

  5. Install the front wheel. Refer to Tire and Wheel Removal and Installation .
  6. Remove the safety stands.
  7. Lower the vehicle to the ground.
    8. IMPORTANT: Before checking and adjusting any wheel alignment angles bounce the vehicle to settle the suspension to normal ride height.
  8. Bounce the vehicle several times to settle the suspension.
    9. Fig 2: Identifying Actual Caster Angle
    GM1955534Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: For accurate readings do not push or pull on the tire and wheel assembly during the alignment process.
  9. Determine the actual caster angle (1).
    10. Fig 3: Identifying Front Caster Arm To Subframe Retaining Nut & Bolt
    GM1955535Courtesy of GENERAL MOTORS CORP.
  10. Remove the front caster arm to subframe retaining nut (4) and bolt (2).

    Discard the bolts and nuts.

    11. IMPORTANT: The front caster arm to subframe offset washers (1) are used to adjust the caster of the front suspension.
  11. Adjust the caster to specification by selecting and installing the correct front caster arm to subframe offset washer (1). For caster specifications, Refer to Wheel Alignment Specifications .
  12. Install the subframe offset washer to subframe retaining clips (3).
  13. Install the NEW lower caster arm to the subframe retaining bolt (2).
  14. Install the NEW lower caster arm to the subframe retaining nut (4).

    Do not fully tighten at this stage.

    15. NOTE: Refer to Fastener Notice .
  15. Tighten the front caster arm to subframe retaining nut (4).

    Tighten:  Tighten the nut to 50 N.m+ 120° (30 lb ft + 120°).

    16. Fig 4: View Of Positive Or Negative Camber
    GM1955536Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: For accurate readings do not push or pull on the tire and wheel assembly during the alignment process.
  16. Determine the actual camber, Positive (1) or Negative (2).
    17. Fig 5: Identifying Strut Assembly To Steering Knuckle Retaining Bolts & Nuts
    GM1955537Courtesy of GENERAL MOTORS CORP.
  17. Adjust the camber to specification using the camber adjusting bolt (3). Turning clockwise will reduce negative camber. For camber specifications, Refer to Wheel Alignment Specifications .
  18. Tighten the strut assembly to steering knuckle retaining bolts (2) and nuts (1).

    Tighten: 

    • Tighten the bolts a first pass to 85 N.m (63 lb ft).
    • Tighten the bolts a second pass to 100 N.m (74 lb ft).
    • Tighten the bolts an additional 90 degrees.

  19. Verify that the caster and camber are still within specifications. Refer to Wheel Alignment Specifications .
  20. If further adjustment is required, adjust as necessary.
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