GM Service Manual Online
For 1990-2009 cars only

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

  1. Inspect the front wheel bearings for proper adjustment. Refer to Wheel Bearing Test in Front Suspension.
  2. Inspect the following parts:
  3. • The ball joints
    • The tie rod ends
    • The relay rods
    • Correct excessive looseness before adjusting.
  4. Inspect the tires and the wheels for runout. Refer to Tire and Wheel Vibration in Vibration Diagnosis and Correction.
  5. Inspect the steering gear for looseness at the frame.
  6. Inspect the shock absorbers for leaks or any noticeable noise. Refer to Struts or Shock Absorbers Noisy or Struts or Shock Absorbers Binding in Front Suspension.
  7. Inspect the I-Beam or the stabilizer bar attachments for looseness.
  8. Inspect the alignment equipment. Follow the manufacturer's instructions.
  9. Inspect the level of the vehicle. The vehicle must be on a level surface fore and aft and transversely.