Chevrolet 1977 light duty truck Service Manual page 299

7. Install lire
vehicle to floor.
S TE ER IN G KNUCKLE
It is recom m ended
supported as on a twin-post hoist so that the front coil
spring rem ains compressed, yet the wheel and steering
knuckle assembly rem ain accessible. If a fram e hoist is
used, support lower control arm with an adjustable
jackstan d 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 - R e m o v a l" .
4. Remove disc splash shield bolts securing the
shield to the steering knuckle. Remove Shield.
5. Refer to Section 3B-Steering for service removal
operations.
6. Remove u pper and lower ball stud cotter pins
and 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
CAUTION: See C A U T IO N on page 1 o f this
section regarding the fa sten ers referred to in
steps 2, 3, 4 and 5.
1. Place steering knuckle in position and insert
upper and lower ball studs into knuckle bosses.
CAUTION: Steering knuckle hole, ball stud and
nut should be fr e e o f dirt a n d grease before
tightening nut.
2. Install ball stud
specifications. (See Specification Section.)
CAUTION: I f necessary, tighten one more
and wheel assembly and
that vehicle be raised and
nuts and tighten nut
notch to insert cotter pins. Do not loosen nut to
insert cotter pin. Refer to Ball Joint text fo r
proper nut installation sequence.
3. Reverse rem aining
tighten splash shield m ounting bolt. Tighten two caliper
assembly m ounting bolts to 35 ft. lb. torque.
4. Adjust wheel bearings as outlined u nder Front
W heel Bearing Adjustment.
5. Tighten wheel nuts to 75 ft. lb.
CRO SSM EM BER AND S U SPEN SIO N U N IT
Com ponent parts of the front suspension may be
serviced separately as outlined in the preceding service
operations. However,
perform ed to crossmember, frame, etc., the unit can be
removed and installed as follows:
Removal (Fig. 3C-32)
lower
1. Place vehicle on hoist and remove the shock
absorber from the lower control arm.
2. Remove idler arm and pitm an arm.
3. Support engine and remove front engine m ount
center bolts.
4. Separate m ain brake feeder line from cross­
m em ber tee.
5. Remove bolts retaining crossmember hangers to
fram e side rails.
6. If equipped with brake support struts remove
bolts retaining struts to crossm ember and fram e and
remove.
to
removal procedure,
if extensive service is
and
to be