Chevrolet 1977 light duty truck Service Manual page 294

2. Slide new seal on each end of shaft and insert
sh aft into control arm.
3. S tart 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
sh aft for free rotation. Figure 3C-20 shows correct final
positioning o f shaft.
Installation
CAUTION: See C A U T IO N on page I o f this
section regarding the fa steners 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.
3. Install " U " bolts. Do not torque nuts at this
time.
4. Torque cross-shaft end nuts.
N O T E: 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.
U PPER C O N TR O L ARM ASSEMBLY
All Removal
1. Raise vehicle on hoist, remove wheel and tire
assembly and support lower control arm assembly with
adjustable jackstand.
2. Remove cotter pin from upper control arm ball
stud and loosen stud nut one turn.
3. 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.
NOTE: It is necessary to remove the brake caliper
assembly and wire it to the fram e to gain clearance
for tool J-23742.
procedure.
4. Remove nuts securing control arm shaft to
frame. W ithdraw control arm assembly.
N OTE: Tape shims together and tag for proper
relocation w'hen control arm is reinstalled.
" J
r e m o v e
UPPER ■
J - 2 3 7 4 2
See section 5 for proper
RE MO VE
LO W ER
HE A V Y
FLAT
W A S H E R
J - 2 3 7 4 2