GM Service Manual Online
For 1990-2009 cars only

Preliminary Alignment Inspection C Model

  1. Before making any adjustments affecting the caster, the camber, or the toe-in, inspect the front end.
  2. Inspect the tires for the proper inflation pressure. Refer to Tire Inflation Description in Tires and Wheels.
  3. Inspect the front wheel bearing for proper adjustment. Refer to Wheel Bearing Adjustment in Front Suspension.
  4. Correct any excessive looseness before adjusting the ball joints, the tie rod ends, and the relay rods. Refer to Steering Linkage Inspection in Steering Linkage.
  5. Inspect the wheels and tires for runout. Refer to Tire and Wheel Runout Measurement in Vibration Diagnosis and Correction.

  6. Object Number: 156337  Size: SH
  7. The correct specification is 95.0 ± 6.0 mm. If not within specifications, make the correction before adjusting the caster.
  8. Inspect the steering gear for looseness at the frame.
  9. Inspect the shock absorbers for leaks or noticeable noise. Refer to Shock Absorber Replacement in Front Suspension.
  10. Inspect the control arms or the stabilizer shaft attachments for looseness. Refer to Stabilizer Shaft Replacement in Front Suspension and Axle.
  11. Inspect the alignment equipment.
  12. Follow the manufacturer's instructions.

  13. Inspect the level of the vehicle.
  14. The vehicle must be on a level surface fore and aft and side to side.

  15. Inspect for excess drag or poor return of the steering wheel due to stiff or rusty suspension or linkage components.

Preliminary Alignment Inspection K 1, 2 Model

    Important: Before making any adjustments affecting the caster, the camber, or the toe-in, inspect the front end.

  1. Inspect the tires for the proper inflation pressure. Refer to Tire Inflation Description in Tires and Wheels.
  2. Inspect the front wheel bearing for proper adjustment. Refer to Wheel Bearing Adjustment Front Suspension.
  3. Correct any excessive looseness before adjusting the following parts:
  4. • The ball joints
    • The tie rod ends
    • The relay rods.
    • Refer to Steering Linkage Inspection in Steering Linkage.
  5. Inspect the wheels and tires for runout. Refer to Tire and Wheel Runout Measurement in Vibration Diagnosis and Correction.

  6. Object Number: 156339  Size: SH
  7. The correct specification is 157.0 ± 6.00 mm. If not within specifications, make the correction before adjusting the caster.
  8. Inspect the steering gear for looseness at the frame.
  9. Inspect the shock absorbers for leaks or noticeable noise. Refer to Shock Absorber Replacement in Front Suspension.
  10. Inspect the control arms or the stabilizer shaft attachments for looseness. Refer to Stabilizer Shaft Replacement in Front Suspension.
  11. Inspect the alignment equipment.
  12. Follow the manufacturer's instructions.

  13. Inspect the level of the vehicle.
  14. The vehicle must be on a level surface fore and aft and side to side.

  15. Inspect for excess drag or poor return of the steering wheel due to stiff or rusty suspension or linkage components.

Preliminary Alignment Inspection K Model

    Important: Before making any adjustments affecting the caster, the camber, or the toe-in, inspect the front end.

  1. Inspect the tires for the proper inflation pressure. Refer to Tire Inflation Description in Tires and Wheels.
  2. Inspect the front wheel bearing for proper adjustment. Refer to Wheel Bearing Adjustment in Front Suspension.
  3. Correct any excessive looseness before adjusting the following parts:
  4. • The ball joints
    • The tie rod ends
    • The relay rods
    • Refer to Steering Linkage Inspection in Steering Linkage.
  5. Inspect the wheels and tires for runout. Refer to Tire and Wheel Runout Measurement in Vibration Diagnosis and Correction.

  6. Object Number: 156339  Size: SH
  7. The correct specification is 10906 ± L65 and 20906 ± C6P ± 3 145.0 ± 6.0 mm. If not within specifications, make the correction before adjusting the caster.
  8. Inspect the steering gear for looseness at the frame.
  9. Inspect the shock absorbers for leaks or noticeable noise. Refer to Shock Absorber Replacement in Front Suspension.
  10. Inspect the control arms or the stabilizer shaft attachments for looseness. Refer to Stabilizer Shaft Replacement in Front Suspension.
  11. Inspect the alignment equipment.
  12. Follow the manufacturer's instructions.

  13. Inspect the level of the vehicle.
  14. The vehicle must be on a level surface fore and aft and side to side.

  15. Inspect for excess drag or poor return of the steering wheel due to stiff or rusty suspension or linkage components.