Clean And Inspect; Removing Differential Side Bearing; Alignment Marks - Pontiac Grand Prix Service Manual

4A-16
1369
PONTIAC SERVICE MANUAL
3. If bearing outer race turns smoothly and no visible
damage is found, bearing can probably be reused.
4. Repeat above operation with other outer race and
matching bearing.
NOTE: Both side bearings and their outer races are
matched parts. If either bearing is to be replaced, its
matching outer race must also be replaced.
5. Inspect fit of inner races on case hubs by prying
against shoulders at puller recesses. Bearing inner
races must be tight on case hubs.
NOTE:
If
either bearing is loose on case, the entire case
murt be replaced.
6. If bearing inspection indicates that bearings should
be replaced, insert differential case in vise and remove
side bearing, using side bearing puller J 8107 and
adapter J 8107-4-P, J 8107-2-T, F, or G.P. or a suitable
puller (Fig. 4A-24).
7. Turn differential case in vise and remove other side
bearing in same manner.
8. All except Grand Prix medium duty - remove pinion
shaft locking bolt and washer.
9. All except Grand Prix medium duty
- drive pinion
shaft out of case, using brass drift (Fig. 4A-26).
10. All except Grand Prix medium duty - remove
differential pinion gears, thrust washers and side gears.
Place them in sets so they may be reinstalled in their
original position.
J 8107-4 PONTIAC
JB 107-2 TEMPEST,
FIREBIRD, AND
GRAND PRlX
Fig. 4A-24 Removing Differential Side Bearing
11. If ring gear is to be removed, clamp case in vise so
jaws are 90" to pinion shaft holes. Remove twelve ring
gear retaining bolts for Pontiac; ten retainer bolts for
Tempest, Firebird, or Grand Prix.
NOTE: Ring gear to case bolts have left hand threadr,
Pontiac only
12. Partially reinstall two bolts on opposite sides of
ring gear.
13. Remove ring gear from case by alternately tapping
on bolts.
CA UTION: Do not pry between case and ring gear.
14. Grand Prix medium duty - scribe mark or paint
differential case halves (Fig. 4A-25) to aid in align-
ment of case when assembling.
15. Grand Prix medium duty - remove differential case
attaching bolts and lift flange half of case from cap
half. Remove side gear and thrust washer and keep
these parts with flange half of case assembly.
*
16. Grand Prix medium duty - remove corresponding
parts from cap half and keep them with cap half of
case assembly.
CLEAN AND INSPECT
1. Thoroughly clean differential case and inspect,
paying particular attention to ring gear mounting
flange, ring gear pilot, side bearing hubs, thrust
washer surfaces, pinion shaft bore and side gear hub
bores.
ALIGNMENT MARKS
.
Fig. 4A-25 Alignment Marks
-
Grand Prix Medium
Duty