Pickup 4WD V6-2972cc 3.0L SOHC (1991)
Alignment: Service and Repair
Preliminary Check
1.
Ensure tires are inflated to correct pressure, then check for uneven wear.
2.
Check front wheel bearings, suspension arm, and ball joints for damage and replace components as necessary, to eliminate improper alignment due
to faulty components.
3.
Check steering gear for damage and adjust as necessary.
4.
Check shocks for damage and replace as necessary.
5.
Rock vehicle backward and forward and bounce it upward and downward to settle vehicle prior to alignment.
6.
Ensure vehicle is unloaded and on a suitable alignment rack according manufacturers' instructions. When measuring equipment is attached
directly to outer end of driveshaft and front wheels are on turntables, apply brake to prevent improper vehicle movement.
2WD Pickup
1.
Hold upper arm shaft to crossmember bolt and remove nut from engine compartment side.
2.
Adjust number of shims between upper arm shaft and crossmember. A total of approximately .16 inch of shim thickness is normally required for
standard camber. A .039 inch adjustment of shim thickness provides approximately 13 minutes adjustment of camber.
4WD Pickup
Adjust camber by adjusting number of shims between upper arm shaft and arm post of side frame. A .039 inch adjustment of shim thickness provides
approximately 13 minutes adjustment of camber.
Rear Camber
Rear camber is preset to specifications and cannot be adjusted. If camber is out of specification, bent or damaged components must be replaced.
Front Caster
Adjustment of caster on these vehicles is made by turning the eccentrics on upper arm shaft. A half turn of upper arm shaft will cause .049 inch fore or
aft movement of upper arm shaft, resulting in 3 3/4° caster adjustment.
Rear Toe-In
Rear toe-in is preset to specifications and cannot adjusted. If rear toe-in is out of specification, bent or damaged components must be replaced.
2WD Pickup
1.
Adjust toe-in by turning left tie rod turnbuckle. Toe-in is increased by turning tie rod toward front of vehicle or decreased by turning tie rod toward
rear of vehicle. One complete turn of turnbuckle changes toe-in adjustment by approximately .3 inch
2.
After adjusting toe-in, check difference in length of left and right tie rods. If difference is greater than .2 inch, remove right tie rod and adjust
length until difference is reduced to .2 inch or less. ``L'' stamped on outer surface of tie rod indicates lefthand thread.
4WD Pickup
1.
Adjust toe-in by turning left and right tie rod turnbuckles equal amounts in opposite directions.
2.
Toe-in on left wheel is reduced by turning tie rod toward front of vehicle or increased by turning tie rod toward rear of vehicle. Toe-in on right
wheel is reduced by turning tie rod toward rear of vehicle or increased by turning tie rod toward front of vehicle. A half turn of turnbuckles
changes toe-in approximately .3 inch
