Front Caster and Camber Adjustment

NOTE: Before adjusting caster and camber angles, the front bumper should be jounced three times to allow the vehicle to return to its normal height.

Caster and camber adjustments are made by inserting shims between the upper control arm shaft and the frame bracket. Shims may be added, subtracted, or transferred to change the readings.

To adjust caster and camber, loosen the upper control arm shaft to frame nuts, add or subtract shims as required, and torque the nuts. Toe-in must be checked after changing caster or camber.

1. Caster-Transfer shims, front to rear or rear to front.
- The transfer of one shim from the rear bolt to the front bolt will decrease positive caster.
2. Camber-change shims at both the front and rear of the shaft.
- Adding an equal number of shims at both the front and rear of the cross shaft will decrease positive camber.

A normal shim pack will leave at least two and one-half threads of the bolt exposed beyond the nut. The maximum shim pack cannot be thicker than 19.5 mm (0.77 inch). The difference between the front and rear shim packs must not exceed 10 mm (0.40 inch). If these requirements cannot be met, check for damaged control arms and related parts.

Tighten the nut on the thinner shim pack first. This improves shaft-to-frame clamping force and torque retention.