Chevrolet Light Duty Truck 1973, Service Manual

Page: 199 / 979

F R O N T S U S P E N S IO N 3 -2 5
caliper assembly and wire it to the frame to
gain clearance for tool J-23742. See section 5
for proper procedure.
CAUTION:
Before proceeding with Step 5, be
sure lower control arm is supported as pointed
out in Step 1.
5. Extend bolt from Tool J-23742 to loosen ball stud in
steering knuckle. When stud is loosened, remove
tool and ball stud nut.
6
. Pull the brake disc and knuckle assembly up off the
ball stud and support the upper arm with a block of
wood so that assembly is out of working area.
CAUTION:
Do not put stress on the brake line
flex hose.
7. Install Tools J-9519-10 and J-9519-7 as shown in
Fig. 36.
NOTE: It will be necessary to alter Tool
J-9519-10 as illustrated in Fig. 37 and install
a 3” I.D. pipe as shown if working on a 20 or
30 series vehicle.
8
. Turn hex head screw until ball joint is free of
control arm.
9. Remove tools and the ball joint.
Installation (Fig. 38)
CAUTION:
See CAUTION on page 1 of this
section regarding the fasteners referred to in
steps 4, 5 and
7.
1. Start the new ball joint into the control arm and
install J-9519 and J-9519-9 as shown.
NOTE: Position bleed vent in rubber boot
facing inward.
2. Turn hex head screw until ball joint is seated in
control arm.
3. Lower the upper arm and mate the steering knuckle
to the lower ball stud.
4. Install brake caliper assembly if removed (see
Section 5).
5. Install ball stud nut and torque as follows. All
Series, 80—100 ft. lbs. plus additional torque to
align cotter pin hole not to exceed 130 ft. lbs.
maximum. Never back off to align cotter pin.
6
. Install a lube fitting and lube the joint.
7. Install tire and wheel assembly and lower vehicle to
floor.
STEERING KNUCKLE
It is recommended that vehicle be raised and supported
as on a twin-post hoist so that the front coil spring
Fig. 36—Ball Joint Removal
Fig. 37—Alteration to Tool J-9519-10 Fig. 38—Installing Ball Joint
LIGHT DUTY TRUCK SERVICE MANUAL
WATER PIPE