Adjust the rear axle pinion input angle on vehicles equipped with leaf springs with tapered shims (Fig.
37). Install tapered shims between the springs and axle pad to correct the angle. Refer to Group 2, Suspension, for additional information.
Fig. 37 Pinion Angle Adjustment at Leaf Springs
1 - WEDGE
FRONT AXLE PINION INPUT ANGLE
Adjust the front axle pinion input angle at the lower suspension arms with shims (Fig. 38). Adding shims will decrease the pinion shaft angle but will also increase the caster angle. The pinion shaft angle has priority over the caster angle. Refer to Group 2, Suspension, for additional information.