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Wheel Alignment Specifications & Procedures: Adjustments Pontiac Firebird IV

Wheel Alignment 2 illustrations ~380 words

RIDING HEIGHT ADJUSTMENT

Note. On vehicles with electronic chassis controls, ensure all systems are functional before adjusting riding height or wheel alignment.

Before adjusting alignment, check riding height. Check riding height with vehicle on level floor and tires properly inflated. Tire inflation specification can be found on door pillar, side wall of tire, sun visor or glove box. Bounce vehicle several times and allow suspension to settle.

Visually inspect vehicle for signs of abnormal height from front to rear or side to side. Remove extra heavy items from passenger and luggage compartments. If riding height is not within specifications, check, repair or replace suspension components. See RIDING HEIGHT SPECIFICATIONS table.

ORDER OF ALIGNMENT

Note. To ensure accurate alignment, align wheels in the following order: 1) rear camber; 2) rear toe-in; 3) front caster; 4) front camber; 5) front toe-in.

CAMBER ADJUSTMENT (REAR)

Loosen nuts securing lower control arm to crossmember. Attach Turnbuckle Adjuster (J-38658) to crossmember and lower control arm. (Scheme 2) Rotate turnbuckle clockwise to increase camber or counterclockwise to decrease camber. Adjust camber to specification. See WHEEL ALIGNMENT SPECIFICATIONS. Tighten nuts to specification. See TORQUE SPECIFICATIONS. Remove adjuster.

TOE-IN ADJUSTMENT (REAR)

Rear toe-in is not adjustable. If rear toe-in is not as specified, repair or replace worn or damaged components.

CASTER ADJUSTMENT

Loosen nuts on bolts securing lower control arm to crossmember. Attach Turnbuckle Adjuster (J-38658) to crossmember and lower control arm. (Scheme 2) Rotate turnbuckle clockwise to increase caster or counterclockwise to decrease caster. Adjust caster to specification. See WHEEL ALIGNMENT SPECIFICATIONS. Tighten nuts to specification. See TORQUE SPECIFICATIONS. Remove adjuster.

CAMBER ADJUSTMENT (FRONT)

Loosen nuts on bolts securing lower control arm to crossmember. Attach Adjuster (J-38658) to crossmember and lower control arm. (Scheme 2) Rotate turnbuckle clockwise to increase camber or counterclockwise to decrease camber. Adjust camber to specification. See WHEEL ALIGNMENT SPECIFICATIONS. Tighten nuts to specification. See TORQUE SPECIFICATIONS. Remove adjuster.

Scheme 2

Scheme 2: CAMBER ADJUSTMENT (FRONT)

TOE-IN ADJUSTMENT (FRONT)

Loosen tie rod end lock nut. (Scheme 3) Loosen clamp securing dust boot to inner tie rod. Rotate inner tie rod until toe-in is as specified. See WHEEL ALIGNMENT SPECIFICATIONS. Tighten lock nut to specification. See TORQUE SPECIFICATIONS. Ensure steering gear dust boot is straight after adjustment. Tighten dust boot clamp.

Scheme 3

Scheme 3: TOE-IN ADJUSTMENT (FRONT)