GM Service Manual Online
For 1990-2009 cars only

Object Number: 97  Size: MH

Important: Before adjusting the caster angle and camber angle, raise and release the front bumper. Do this twice in order to allow the vehicle to return to a normal height. Refer to Wheel Alignment Specifications .

Use the cams on the upper control arm frame attaching bolts to adjust the caster and the camber.

To adjust the caster and the camber, loosen the upper control arm-to-frame attaching nuts. Rotate the cam by rotating the bolt head.

    • Caster - To increase positive caster, move the front cam lobe inboard and move the rear cam lobe outboard.
    • Camber - To increase positive camber, move the front and the rear cam lobes inboard.

Tighten the nuts after you select the proper cam position. Refer to Fastener Tightening Specifications .