Upper Control Arm; Upper Control Arm Shaft And/Or Bushings - Pontiac FIREBIRD 1972 Service Manual

3-28 1972 PONTIAC SERVICE MANUAL
NOTE: Instead of using a pry bar, the PRE-
FER R ED METHOD using tool J 23 742- I can
be used (Fig. 3-23).
INSTALL
CAUTION: See CA UTION on page 1 o f this
Section regarding the fasteners referred to in
steps 2, 3 and 5.
1. Install steering knuckle by reversing above steps.
2. Tighten lower ball joint stud nut to 70 lb. ft. torque
and upper ball joint stud nut to 40 lb. ft. torque.
Insert cotter pins.
CAUTION: Care should be taken to insure that
steering knuckle hole, ballstud and nut are free
of dirt and grease before tightening nut. Turn
nut in tightening direction only to align slot
with hole to insert cotter pin. DO NOT BACK
OFF NUT. Maximum torque to align slot with
hole not to exceed 70 16. ft. on upper ball joint
or 100 16. ft. on lower ball joint.
3.
Drum Brakes: Tighten backing plate and brake as-
sembly upper bolt to 115 lb. ft. torque and two lower
bolts to 80 lb. ft, torque while holding nuts.
Disc Brakes: Tighten splash shield and mounting
bracket upper bolt to 1 15 lb. ft. torque and two lower
bolts to 80 lb. ft. torque while holding nuts. Tighten
two caliper assembly mounting bolts to 35 lb. ft.
torque.
4. Adjust wheel bearings as outlined in this section un-
der ADJUSTMENT PROCEDURES.
5. Disc Brakes: Tighten wheel nuts to 70 lb. ft. torque.
UPPER CONTROL ARM
REMOVE
1. Raise car and support at front lower control arm.
WARNING: THIS KEEPS SPRING COM-
PRESSED.
2. Remove wheel and tire assembly.
3. Remove upper ball joint stud from steering knuckle
by prying on control arm using a suitable pry bar and
tapping sharply on knuckle in area of ball stud.
NOTE: Instead o f using a pry bar, the PRE-
FERRED METHOD using tool J 23 742- 1 can
be used (Fig. 3-23).
4. Remove two self-locking nuts, washers and bolts
holding upper control arm shaft to frame support;
remove shims, control arm and shaft assembly. Use
tool J 22618 on B Series (Fig. 3-1 8).
INSTALL
CAUTION: See CAUTION on page 1 o f this
Section regarding the fasteners referred to in
steps I, 2 and 4.
1. Position control arm and shaft assembly to frame
support and install two bolts, shims, washers and
self-locking nuts. Tighten nuts to 80 lb. ft. torque on
B & F Series o r to 50 lb. ft. on A, G & X Series while
holding bolts.
2. Insert upper ball joint stud into steering knuckle hole
and tighten nut to 40 lb. ft. torque. Insert cotter pin.
CAUTION: Care should be taken to insure that
steering knuckle hole, ball stud and nut are free
of dirt and grease before tightening nut. Turn
nut in tightening direction only to align slot
with hole to insert cotter pin. DO NOT BACK
OFF NUT. Maximum torque to align slot with
hole not to exceed 70 lb. ft.
3. Tighten the control arm shaft nuts if control arm
bushings have been replaced. Torque nuts to 50 lb. ft.
with control arm in normal curb height position.
4. Install wheel and tighten nuts to 70 lb. ft. torque.
5. Lower car and check front end alignment.
UPPER CONTROL ARM SHAFT AND/OR
BUSHINGS (CONTROL ARM REMOVED
FROM CAR)
REMOVE
1. Remove nut and retainer from both ends of control
arm shaft.
2. Place control arm in an arbor press and position tools
J 9502-3 and J 22899 as shown in Fig. 3-24.
CAUTION: Be certain flange of bushing does
not contact tool J 22899.