Chevrolet 1988 Light Duty Truck Repair Manual page 155

• Refer to " Checking the Axle Before D isassem bly" in
this section.
4. Pinion shaft lock screw (15).
5. Pinion shaft (17).
6. Differential pinion (21) and side gears (22).
• Roll the pinion gears out of the case with the
pinion thrust washers (20).
• Remove the side gears and the side gear
thrust washers (19). Mark the gears and the
differential case as left and right.
7. Differential bearing cap bolts (18).
8. Differential bearing caps (10).
• Mark the caps and the housing as left and
right.
NOTICE: Be c a re fu l w hen p ry in g th e d iffe re n tia l
case o u t o f th e a x le h o u s in g so as n o t to
d a m a g e th e c o v e r g a s k e t s u r f a c e .
d iffe re n tia l case m u s t be s u p p o rte d w hen it is
b e in g re m o v e d to p re v e n t the case fro m fa llin g
an d d a m a g in g the case.
9. Differential carrier (24).
• Pry the case from the axle housing at the
differential " w indow " (figure 2).
10. Bearing outer races (8) and shims (9).
• Mark the races and the shims as left and right,
and place them with the bearing caps.
11. Differential side bearings (8) using J 8107-4 and
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 the puller.
12. Ring gear bolts (23).
• Ring gear bolts use left-handed threads.
NOTICE: Do n o t p ry the rin g gear fro m the case.
T h is w il l d a m a g e th e r in g g e a r a n d th e
d iffe re n tia l case.
13. Ring gear (7) from the differential case.
• Drive the ring gear off with a brass drift if
necessary.
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8 1 2
In sp ect
• Drive pinion bearing preload (figure 4).
• For looseness of pinion assem bly by moving it
back and fo rth . (This in d ica tes excessive
bearing wear).
14.
P inion fla n g e nut (35) and w a sh e r (36) using
J 8614-01 to hold the pinion flange (figure 5).
15. Pinion flange using J 8614-01 (figure 6).
16. Pinion (7) from the axle housing.
• Thread the pinion nut halfway onto the pinion.
• Replace the differential cover (12) with two
bolts (14) to keep the pinion from falling to the
floor.
• Drive the pinion out of the housing with a
ham m er and a soft drift (figure 7).
17. C ollapsable spacer (4) from the pinion.
18. Outer pinion seal (38) and bearing (39).
The
19. Inner bearing (5) and shim (6) from the pinion.
• P re ss th e b e a rin g o ff th e p in io n
J 8612-B (figure 8).
• Remove the shim.
-INCH RING GEAR 4B2-3
u s in g