Caster

STANDARD PROCEDURE - CASTER





Before each alignment reading the vehicle should be jounced (rear first, then front). Grasp each bumper at the center and jounce the vehicle up and down three times. Always release the bumper in the down position. Check the caster of the front axle for correct angle. Be sure the axle is not bent or twisted. Road test the vehicle and observe the steering wheel return-to-center position. Low caster will cause poor steering wheel returnability. During the road test, turn the vehicle to both the left and right. If the steering wheel returns to the center position unassisted, the caster angle is correct. However, if steering wheel does not return toward the center position unassisted, a low caster angle is probable. Caster can be adjusted by installing cam bolts and rotating the cams on the lower suspension arm.

NOTE: Changing caster angle will also change the front propeller shaft angle. The propeller shaft angle has priority over caster.