Chevrolet Light Duty Truck 1973 Service Manual page 200

3 -2 6 FRONT SU SPEN SION
remains compressed, yet the wheel and steering knuckle
assembly remain accessible. If a frame hoist is used,
support lower control arm with an adjustable jackstand
to safely retain spring in its curb height position.
Removal
1. Raise vehicle on hoist and support lower control
arm as noted above.
2. Remove wheel and tire assembly.
3. Remove caliper as outlined under "Front Wheel
Hub - Removal" .
4. Remove disc splash shield bolts securing the shield
to the steering knuckle. Remove Shield.
5. Refer to Section 9 — Steering Linkage — Tie Rod,
for service removal operations.
. Remove upper and lower ball stud cotter pins and
6
loosen ball stud nuts. Free steering knuckle from
ball studs by installing Special Tool J-23742.
Remove ball stud nuts and withdraw steering
knuckle.
Installation
See CAUTION on page 1 of t h i s
CAUTION:
section regarding the fasteners referred t o i n
steps 2 , 3 , 4 and 5 .
1. Place steering knuckle in position and insert upper
and lower ball studs into knuckle bosses.
Steering knuckle h o l e , ball stud and
CAUTION:
nut should be free of d i r t and grease before
tightening n u t.
2. Install ball stud nuts and tighten nut to specifica­
tions. (See Specification Section.)
If necessary, tighten one more
CAUTION:
notch t o i n s e r t c ot te r pins. Do not loosen nut t o
i n s e r t cotter pin. Refer t o Ball Joint t e xt for
proper nut i ns t a l l a t i o n sequence.
3. Reverse remaining removal procedure, and tighten
splash shield mounting bolt. Tighten two caliper
assembly mounting bolts tO 35 ft. lb. torque.
4. Adjust wheel bearings as outlined under Front
Wheel Bearing Adjustment.
5. Tighten wheel nuts to 75 ft. lb.
CROSSMEMBER AND SUSPENSION UNIT
Component parts of the front suspension may be
serviced separately as outlined in the preceding service
operations. However, if extensive service is to be
performed to crossmember, frame, etc., the unit can be
removed and installed as follows:
Removal (Fig.
39)
1. Place vehicle on hoist and remove the shock
absorber from the lower control arm.
2. Remove idler arm and pitman arm.
3. Support engine and remove front engine mount
center bolts.
4. Separate main brake feeder line from crossmember
tee.
5. Remove bolts retaining crossmember hangers to
frame side rails.
. Remove bolts securing crossmember to frame
6
bottom rail and lower the assembly from vehicle.
Installation
CAUTION: See CAUTION on page 1 of t h i s
section regarding the fasteners referred t o i n
s teps 1 , 2 , 3 , 4 , 5 , 6 and 7 .
1. Jack crossmember into position under frame and
install frame bottom rail mounting bolts.
2. Install bolts securing crossmember hanger to frame
and torque nuts. See specifications.
3. Position engine on front mount and install
mounting bolt and torque (see Section
4. Install the shock absorber.
5. Connect front brake main feeder line and bleed
brakes as described in Section 5.
. Install idler arm and pitman arm (see Section 9).
6
7. Check and Adjust front end alignment as outlined
under "M aintenance and Adjustments" in this
section.
. Lower the vehicle to the floor.
8
).
6
LIGHT DUTY TRUCK SERVICE MANUAL