GMC 1982 Light Duty Truck Service Manual page 359

2. Slide new seal on each end of shaft and insert shaft into
control arm.
3. Start new bushings on shaft and into control arm.
Adjust shaft until it is centered in control arm, then
turn bushings in and torque to specifications. Check
shaft for free rotation. Figure 3C-20 shows correct final
positioning of shaft.
In sta lla tio n
See N O T IC E on page 1 of this section
N O T IC E :
regarding the fasteners referred to in steps 4 and 5.
1. Install shaft to control arm and install end nuts. Do not
torque nuts at this time.
2. Raise jack and position shaft into crossmember saddle.
Be sure to index hole in shaft to mate with bolt head in
saddle.
Fig. 3C-21--Disconnecting Ball Joints from Knuckle
J— 24435-7
J— 24435-1
Fig. 3C-22-U.C.A. Rubber Bushing Removal
3. Install " U " bolts. Do not torque nuts at this time.
4. Torque cross-shaft end nuts. The shaft should roate by
hand after the nuts are torqued.
5. Torque "U" bolt nuts.
6. Remove safety chain.
7. Lower vehicle to floor.
UPPER CONTROL A R M ASSEMBLY
All R e m o v a l
1. Raise vehicle on hoist, remove wheel and tire assembly
and support lower control arm assembly with adjusta­
ble jackstand.
2. It is necessary to remove the brake caliper assembly
and wire it to the frame to gain clearance for tool
J-23742. See section 5 for proper procedure.
3. Remove cotter pin from upper control arm ball stud
and loosen stud nut one turn.
4. Loosen upper control arm ball stud in steering knuckle,
using Tool J-23742 position as shown in Figure 3C -21.
Remove the nut from the ball stud and raise upper arm
to clear steering knuckle.
J— 24435-4
Fig. 3C-23-U.C.A. Rubber Bushing Installation
FRONT SUSPENSION 3C-17
J— 24435-7
J— 24435-5
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