Chevrolet 10 Series 1970 Service Manual page 203

F i g . 4 7 — R e m o v in g
and cups see " B earin g Cup R ep la cem en t" fo r
variou s axles.
2. Thoroughly clean a ll lubricant o ff axle housing tube
and out o f inside the hub, wipe d ry.
p a rtic le s o f gasket a re rem oved fro m outer end o f
hub, axle shaft, and hub cap.
3. Scrape old sealin g compound out o f o il seal bore in
the hub.
Inspection
1. Inspect b earin g r o lle r s fo r e x c e s s iv e w ear, chipped
edges, and other dam age.
around cone to detect any fla t o r rough spots on r o l­
le r s o r cone.
2. Exam ine b earing cups in hub fo r pits, cracks, and
other damage.
3. Exam ine axle shaft flange
splines, hub b o re , and tapped holes fo r evidence o f
d a m a ge--clea n up threads o r rep lace parts where
requ ired .
4. Exam ine o il seal sle e v e
roughness, check axle housing o il d e fle c to r and brake
drum o il d e fle c to r fo r evidence o f d a m a g e--rep la ce
p arts w here requ ired .
5. Exam ine brake drum fo r e x c e s s iv e scorin g and other
dam age. T o rep la ce brake drum r e fe r to " Brake
Drum R e p la c e m e n t."
Bearing Cup
Replacem ent
R eplace inner cup (all a x le s ) and outer bearing cup fo r
17,000 lb. axle as follow s:
1. Cut a suitable length o f 1/2 inch steel bar stock fo r
p re s s -o u t tool as shown in F igu re 47.
2. P la c e appropriate p re s s -o u t tool behind bearing cup,
index tool in provid ed notches, and p re s s out cup
with an a rb or p re s s .
NOTE: Hub outer bearin g
17,000 lb. axle) cannot be rep laced with inner
b earin gs in position;
b earin gs (if req u ired ) b efore p roceeding.
H u b In n e r B e a r in g C u p
Make sure all
Slowly m ove r o lle r s
studs, wheel studs, hub
fo r evidence o f w ear or
(a ll a xles except
th e re fo re , rep la ce outer
REAR SUSPENSION AND DRIVE LINE 4-27
F i g . 4 8 — I n s t a l l i n g
3. P o sition bearin g cup in hub--thick edge o f cup toward
shoulder in hub--then, using applicable cup in staller
as specified , p re s s cup into hub until it seats on hub
shoulder (fig . 48).
cocked and that it is fu lly seated against shoulder.
a. J-8114 (Use with J-8092 d riv e r handle)--5200 and
7200 lb. axles.
b. J-8093 (Use with J-8092 d r iv e r h a n d le )--11,000
and 13,500 lb. axle.
c. J -5 6 6 9 --15,000 lb. axle with 15 x 4 inch brakes.
d. J-22359-15,000 lb. axle with 15 x 5 inch brakes.
M50 T ra ilin g A x le
15,000 lb. A x le (Tw o-Speed)
M50 T ra ilin g A x le (Two-Speed)
e. J-21160--17,000 lb. (Two-Speed)
f . J-21160 (Use with J-8092 d riv e r h a n d le )--17,000
lb. axle (inner b earin g).
g. J-21108 (Use with J-8092 d r iv e r handle)--17,000
lb. axle (outer bearin g).
Replace outer bearin g
17,000 lb. sin gle speed) as follow s:
NOTE: Inner bearin g assem bly must be r e ­
moved b efo re attempting to replace outer b e a r­
ing assem bly.
1. Using a punch o f suitable length, tap bearin g outer
race away fro m b earin g retaining rin g (fig . 49). Then
rem ove retaining ring from hub--using p lie r s fo r r e ­
m oval o f ring on 5200 and 7200 lb. axle (fig . 49),
using T o o l J-22380 fo r rem oval o f rin g on 15,000 lb.
axle.
F ig . 4 9 — Removing Bearing R eta in er Ring
(5200 and 7200 lb . A x le )
H u b I n n e r B e a r in g C u p ( T y p i c a l )
Make certain that cup is not
assem bly (all a xles except
CHEVROLET TRUCK SERVICE MANUAL