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GMC ZE06581 1976 Maintenance Manual Supplement page 36

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2. Position dial indicator as shown in figure
18 .
3.
Place pry bar as shown in figure 19 and
pry down on bar.
Care must be used so that
drive axle seal is not damaged . Reading must
not exceed .125" .
LOWER CONTROL ARM BALL
JOINT
NOTE : Lower control arm ball joints are no
longer serviced separately . If ball joints are
worn, it is now necessary to install entire
right or left hand lower control arm .
UPPER CONTROL ARM BALL
JOINT
REMOVAL
1 . Hoist vehicle under lower control arms
and remove wheel .
2 . Remove cotter pin and nut from upper
ball joint stud .
3 . Disconnect brake hose clip from upper
ball joint stud.
4. Using hammer and a brass drift similar
to figure 11, drive on spindle until upper ball
joint stud is disengaged from spindle.
5 . Raise control arm up and drill rivets with
a 1/8" drill bit 3/8" deep.
NOTE:
It may be necessary to use a block
of wood between frame and control arm for
support .
6 . Drill off rivets using a 1/2" drill bit . Do
not drill into control arm .
7 . Using a punch,
drive
out rivets and
remove ball joint .
INSTALLATION
See CAUTION on Page 3A-1 of this section .
1 . Install service ball joint into control arm
(bolts must be installed from top side) . Torque
nuts (4) . See Specifications at the end of this
section for torque value .
2 . Install service ball joint, into knuckle .
See Specifications at the end of this section
for procedure .
Do not torque at this time .
Position brake hose clip over stud.
3 . Install ball joint stud nut .
Torque nut.
See Specifications at the end of this section
for torque value and procedure .
CAUTION: Cotter pin must be bent up
to prevent interference with outer C. V .
Joint Seal .
4. Install wheel and lower hoist .
REMOVAL
1 . Remove
link
bolts,
nuts,
grommets,
spacers and retainers from lower control arm .
Discard bolts .
2 . Remove
bracket-to-frame
attaching
bolts and remove stabilizer bar from front of
vehicle .
INSTALLATION
FRONT SUSPENSION 3A-1 7
Figure 19-Pry Bar Installation
STABILIZER BAR
See CAUTION on Page 3A-1 of this section .
To install, reverse removal procedure.
NOTE: New link nuts must be torqued, then
bolt cut off 1/4" below nut .
See Specifi-
cations at the end of this section for torque
value.

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