Chevrolet Light Duty Truck 1973 Service Manual page 255

1 . A x l e S h a f t
2 . S h a f t - t o - H u b B o l t
3 . L o c k n u t
4 . L o c k n u t R e t a i n e r
5 . A d j u s t i n g N u t
6 . T h r u s t W a s h e r
7 . H u b O u t e r B e a r i n g
Fig. 66—Hub and Drum Assembly—10-1/2" Axles
For 12-1/4" Axles
1. Cut a suitable length of 1/2 inch steel bar stock for
press-out tool as shown in figure 70.
2. Place bar stock tool behind inner bearing cup,
index tool in provided notches, and press out cup
with an arbor press.
3. Use J-22380, as shown in figure 71, to remove outer
bearing retainer ring.
4. Remove the outer bearing by driving on the axle
shaft spacer, using the splined flange cut from an
old axle shaft, as shown in figure 72.
Inspection and Cleaning o f Bearings
1. Inspect bearing rollers for excessive wear, chipped
edges, and other damage. Slowly move rollers
around cone to detect any flat or rough spots on
rollers or cone.
2. Examine bearing cups in hub for pits, cracks, and
other damage.
3. Examine axle shaft flange studs, wheel studs, hub
splines, hub bore, and tapped holes for evidence of
damage. Clean up threads or replace parts where
required.
4. Examine oil seal sleeve for evidence of wear or
8 . S n a p R i n g
9 . H u b I n n e r B e a r i n g
1 0 . O i l S e a l
1 1 . W h e e l B o l t
1 2 . H u b A s s e m b l y
1 3 . D r u m A s s e m b l y
REAR S U S PEN SIO N A N D DRIVELINE
12 1 1 1 0 9
1. A x 1 e S h a ft
2 . A x le S h a ft-to - W h e e l
Hub R e ta in in g B o lt
3 . A d ju s tin g N u t L o c k n u t
4 . Hub O u te r B earing
Assem bly
5. Hub O u te r Bearing
R e ta in e r
6. W heel B o lt
7. Drum
8. O il D e fle c to r
Fig. 67—Hub and Drum Assembly—12-1/4" Axles—
11 , 000 #
Fig. 68—Removing Lock Nut—Typical
roughness, check axle housing oil deflector and
brake drum oil deflector for evidence of damage.
Replace parts where required.
5. Examine brake drum for excessive scoring and
other damage. To replace brake drum refer to
"Brake Drum Replacement."
Immerse bearing cone and roller assemblies in
6 .
4-31
9 . O il D e fle c to r
10. O il Seal
11. Hub Inner Bearing
A ssem bly
12. D r u m -to -H u b R e ta in in g S crew
13. Thrust W asher
14. Bearing A d ju s tin g N u t
15. A d ju s tin g N u t Lock
16. G a s k e t
LIGHT DUTY TRUCK SERVICE MANUAL