Chevrolet 1977 light duty truck Service Manual page 291

W HEEL HUBS, BEA R IN G S (Fig. 3 C -1 4)
Removal C, G and P Series
1. Raise vehicle on hoist and remove wheel and
tire assembly. Remove dust cap from end o f hub and
w ithdraw cotter pin.
2. Remove the brake caliper and h an g by wire to
the suspension.
CAUTION: Do not allow the caliper assembly
to hang by the brake fle x line.
3. Remove h ub and disc assembly.
4. Remove outer b earing from hub. The inner
bearing will remain in the hub and may be removed by
prying out the inner grease seal.
5. W ash all parts in cleaning solvent.
Inspection
1. Check all bearings for cracked bearing cages,
w orn or pitted rollers.
2. Check bearing races for cracks o r scoring, check
brake discs for out-of-round or scored conditions and
check bearing outer races for looseness in hubs.
Repairs
Replacem ent o f Bearing Cups
If necessary to replace an outer race, drive out old
race from the hub with a brass drift inserted behind race
in notches in hub. Install new race by driving it into hub
with the p rop er race installer J-8457, J-8458. J-8849 or
J-9276-2. Remove and install the inner race in the same
m anner.
COMPONENT PARTS REPLACEMENT
CAUTION: Use care when installing new race
to start it squarely into hub, to avoid distortion
a n d possible cracking.
Thoroughly lubricate bearing assemblies with new
high melting point wheel-bearing lubricant. Remove any
excess iubricant.
N OTE: Be sure bearing parts have been th o r­
oughly cleaned and air-dried.
Wheel S tud Replacem ent (Fig. 3C -14)
N OTE: Use a piece o f w ater pipe or other similar
tool to support the hub while pressing a wheel stud
either in or out.
Installation
CAUTION: See C A U T IO N on page 1 o f this
section regarding the fasteners referred to in
steps 3, 4 and 5.
1. Pack inner and
recom m ended grease (see Section 0).
2. Place inner bearing in hub and install new seal
assembly, tap ping into place with soft ham m er.
3. Position hub and disc on spindle and install
outer bearing, pressing it firmly into position in hub.
Install hub w asher and finger tighten nut.
4. Install brake caliper see section 5.
5. Install wheel and tire, and adjust wheel bearings
as outlined under W heel Bearings— Adjust, then lower
vehicle to floor.
SHOCK ABSORBER
Removal (Fig. 3C-15)
1. Raise vehicle on hoist.
2. Remove nuts and eye bolts securing upper and
lower shock absorber eyes.
3. W ithdraw shock absorber and inspect rubber
outer wheel bearings with