GMC 1989 Light Duty Truck Repair Manual page 164

1
4B3-2 9 fa-INCH RING GEAR
1. Brake Drum
2. W heel S tud
3. A xle S h a ft
4. Rear A xle Seal
5. A xle S h a ft B e aring
6
. P in io n N u t
7. W a sh er
8
. P in io n F lan ge
9. P in io n O il Seal
10. P in io n F ro n t B e aring
11. C o lla p s a b le S p a ce r
12. A xle H o u s in g
13. P in io n Rear B e aring
4. Pinion shaft lock screw (29).
5. Pinion shaft (28).
6
. Differential pinion (31) and side gears (33).
• Roll the pinion gears out of the case with the
pinion thrust washer (30).
• Remove the side gears and the side gear
thrust washers (32). Mark the gears and the
differential case as left and right.
7. Adjusting nut lock bolt (18).
8 . Adjusting nut lock (16).
• Loosen the adjusting nut (17).
9. Differential bearing cap bolts (20).
10. Differential bearing caps (19).
• Mark the caps and the housing as left and
right.
S h im
14.
R ing and P in io n G ear Set
15.
A d ju s tin g N u t L ock
16.
B e aring A d ju s tin g N ut
17.
L ock B o lt
18.
B e aring C ap
19.
B o lt
20.
S h im Pack (in c lu d in g spacer)
21.
D iffe re n tia l S ide B earing
22.
Brake Line C lip
23.
B o lt
24.
C over
25.
Figure 1 — Rear A xle C om ponents
N OTICE: Be careful w hen p rying the d iffe re n tial
case o u t o f the axle housing so n o t to dam age
m ust be su pp o rted w hen it is b ein g rem o ved to
p re v e n t the case from falling a n d d am aging the
case.
11. Differential carrier (27).
12. Bearing outer races (21), shims (21) and bearing
13. D iffe re n tia l side b e a rin g s using J 8107-3 and
14. Ring gear bolts (26).
R ing G ear B o lt
26.
D iffe re n tia l C ase
27.
P in io n S h a ft
28.
P in io n S h a ft L ock S crew
29.
P in io n T h ru s t W a sh er
30.
P in io n G ear
31.
S ide G ear T h ru s t W a sh er
32.
S ide G ear
33.
Brake B a c k in g Plate
34.
S p lit W a sh e r
35.
B o lt
36.
" C " C lip
37.
the co ver g asket surface. The d iffe re n tia l case
• Pry the case from the axle housing at the
differential " window" (figure
adjusting nut (17).
• Mark the races and the shim s as left and right,
and place them with the bearing caps.
J 22888 (figure 3).
• The jaws of J 22888 must pull from beneath
the bearing cone and not the cage. Use the
slots provided for this purpose.
• Ring gear bolts use left-handed threads.
F-04713
2 ).