III. AXLE ADJUSTMENTF.Adjustment Caster is set by the vehiclemanufacturer and can be adjusted only by shimsbetween the axle spring seat and the spring.Changing the caster will change the pinion angleand may affect the operation of the front driveshaft.G.Toe-In Adjustment1.Jack up the front of the vehicle.2.Rotate tire and scribe a line completely aroundtire with a crayon held to center of tire.3.jack.4.tie rod clamp bolts.5.distance between scribed lines on front and backof tires.6.Turn tie rod tube with a pipe wrench to adjusttoe-in. Set tie rod length until frontmeasurement. is 0 to 1/8" less than rearmeasurement.If the.) vehicle has a full-time frontdrive system (proportioning differential),alignment should be 0-1/8 more in front than inrear, for toe-out. Consult tire specialist for aspecific recommendation if specialized tires areused.7.Tighten tie rod clamp bolts to correct torque.Roll vehicle forward at least a distance equal tofour turns of wheels and re-check toe-in. Repeatprocedure if necessary to achieve final toe-indimension.H.AdjustmentBrake adjustment is made automatically. Make theinitial adjustment by driving the air braked vehicle 015"and .030". (Refer to the brake service manual forforward and applying the brakes. Continue additionalinformation-8-
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