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Home >> Cadillac >> 2003 >> Seville SLS >> Repair and Diagnosis >> Suspension >> Wheel Alignment >> Wheel Alignment Specifications & Adjustment Procedures >> Repair Instructions >> Front Caster Adjustment
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Front Caster Adjustment

  1. Remove the top strut mounting bolts.
  2. Lift the front of the vehicle by the body to separate the strut from the inner wheel house. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
    Fig 1: Removing Top Strut Mounting Bolts
    G02068590Courtesy of GENERAL MOTORS CORP.
  3. Using a round file, enlarge the bolt hole opening in the strut tower at the front and rear of the strut mounting holes on the left and right strut towers.
    Fig 2: Modifying Bolt Hole Opening In Strut Tower
    G02068591Courtesy of GENERAL MOTORS CORP.
  4. Pull out the guide pins.
  5. File the excess metal to make the slotted holes.
  6. Paint the exposed metal with rust preventive paint or primer.
  7. Lower the front of the vehicle.
  8. Install the strut attaching bolts, but do not tighten them at this time.
  9. Adjust the caster by moving the top of the strut forward or rearward. A 1 mm (0.040 in) position change at the tower is about equal to 0.1 degree change in caster. Set the caster to the required specification.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  10. Tighten the strut tower bolts.

    Tighten 

    Tighten the strut mounting bolts to 40 N.m (30 lb ft).

  11. Recheck the caster setting after tightening.
  12. Readjust the caster setting if necessary.
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