3-10
1968
PONTIAC
SERVICE
MANUAL
4.
Remove upper and lower
ball
studs
with
J 6627
and remove steering knuckle (Fig, 3-6).
INSTALLATION
1.
Replace steering knuckle by reversing removal
procedure.
2.
Tighten upper and lower
ball
stud nut on Pontiac
and upper
ball
stud nut on Tempest and
Firebird
to
steering knuckle 50 lb. ft. torque. Tighten Tempest
and
Firebird
lower
ball
stud nut to 85 lb. ft. Insert
cotter pin or continue to tighten nut
until
cotter pin
can be installed.
3. Position backing plate onto steering knuckle,
install
and tighten backing plate top
bolt
to 100 lb. ft.
torque and two lower nuts to 80 lb. ft. torque.
4.
Adjust wheel bearings as outlined in this
sec-
tion
under Adjustments and Checks on the Car.
5. Tighten wheel stud nuts to 70 lb. ft. torque on
Tempest and
Firebird
75 lb. ft. on Pontiac, if wheel
and
tire
was removed.
FRONT
UPPER
CONTROL
ARM
REMOVAL
1.
Place
jack under lower control arm, raise car
and remove wheel and
tire
assembly.
2.
Remove upper
ball
stud
from
steering knuckle
with
J 6627 (Fig. 3-6).
3. Remove two bolts and self-locking nuts holding
upper control arm shaft to frame; remove shims
and control arm and shaft assembly. Use
tool
J
22618 on Pontiac (Fig. 3-5).
NOTE;
Firebird
model equipped with air condi-
tioning
and V8 engine.
Follow
steps below before
loosening
upper
control
arm attaching bolts.
a. Remove the three
front
and two rear com-
pressor
mounting bolts and disconnect clutch
wires.
b.
Remove A/C belt and tip compressor up and
move to rear of engine compartment.
INSTALLATION
1.
Position upper control arm and shaft assembly
on
frame cross-member and
install
two bolts, wash-
ers, shims and self-locking nuts. Tighten nuts 75
lb.
ft. torque on Pontiac and 50 lb. ft. on Tempest
and
Firebird
while
holding bolts.
2.
Connect upper
ball
stud to steering knuckle and
tighten
nut 50 lb. ft. torque. Insert cotter pin or
continue to tighten nut
until
cotter pin can be
installed.
3.
Tighten the bushing to shaft nuts if control arm
bushing have been replaced. Torque nuts on Pontiac
to
70 lb. ft.; Tempest and
Firebird
to 50 lb. ft.
4. Replace wheel. Tighten nuts 70 lb. ft. torque
on
Tempest and
Firebird,
75 lb. ft. on Pontiac.
5. Lower car and check
front
end alignment.
6.
Firebird
models
with
V8 engine and air con-
ditioning
reposition A/C compressor and
install
mounting
bolts. Reconnect all clutch wires to com-
pressor
clutch.
UPPER
CONTROL
ARM
CROSS
SHAFT
AND/OR
BUSINGS
(CONTROL
ARM
REMOVED
FROM
CAR)
FIREBIRD
MODELS
REMOVE
1. Remove cap screws,
lock
washers
and collars
from
both
ends
of
cross
shaft.
2.
Install
a 3/8" 24 cap screw in one end of
cross
shaft.
3.
Support control arm in an arbor
press
on
tool
J
22899 and J
21482-2
as shown in Fig. 3-12.
NOTE:
Be certain flange of bushing does not
contact
support.
4.
Press
out bushing using tools shown in Fig.
3-12, invert control arm and
repeat
process
on
other bushing. Discard bushings.
5. Remove cap screw
from
cross
shaft.
NOTE:
If bushing rubber is deteriorated to the
extent that the bushing sleeve cannot be pushed
out, release the
press,
install
J 9502-3 as shown
in
Fig. 3-12 and
press
out the sleeve.
REPLACE
1.
Install
arm in arbor
press
with
tool
J
21482
in
place and
press
in one bushing using J
21474-2
as shown
while
supported on
tool
J 22899 as shown
in
Fig. 3-13.
2.
Install
cross
shaft in arm, invert in
press,
and
press
in second bushing as above.
3.
Cross shaft should be able to be turned by
hand.
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