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FIG. 61- Installing Pinion Rear
Bearing Cone
bearing cone and roller. Press the
front bearing cone and roller into
position as shown in
Fig.
63. Be care-
ful not to crush the bearing spacer.
3. Lubricate the 0-ring with axle
lubricant and install it in its groove in
the pinion
retainer.
Be careful not to
twist
it.
Snap the 0-ring into
position.
4. Place the proper shim on the
carrier housing and install the pinion
and retainer assembly, being careful
not to pinch the 0-ring (Fig. 64).
5. Install the pinion attaching
bolts. Torque the bolts to specifica-
tion.
6. Place the slinger over the
pinion shaft and against the front
bearing·
.
7. Install a new seal in the bear-
ing retainer
(Fig.
65).
8. Install the U-joint flange.
9. Start a new iJ?.tegral nut and
washer on the pinion shaft.
10. Hold the flange and torque
the pinion shaft nut to
175
ft-lbs. Do
not exceed 175 ft-lbs at this time.
11. Check the pinion bearing pre-
load
as
shown in Fig. 66
.
Correct
pre-load will be obtained when the
torque required to rotate the pinion
GROUP
4-REAR AXLE
in the retainer is as specified. If the
torque required to rotate the pinion
is less than specified, tighten the
pinion shaft nut a little at a time until
the proper preload is established. Do
not overtighten the nut. If exces-
sive preload is obtained as a result of
overtightening, replace the collap-
sible bearing spacer.
FIG. 63- Installing Pinion
Front Bearing
Do not back off the pinion shaft
nut to establish pinion bearing
preload. If the torque on the pinion
shaft nut
is
less than
175
ft-lbs after
bearing pre-load is established, a new
collapsible spacer must be used.
DIFFERENTIAL CASE,
BEARINGS AND RING GEAR
If the ring gear runout check (be-
fore disassembly) exceeded specifi-
cations, the condition may be caused
by a warped gear, a defective case,
or excessively worn differential bear-
ings.
To determine the cause of exces-
sive runout proceed
as
follows:
1. Assemble the two halves of the
differential case together without the
ring gear, and press the two differ-
0 -RING
LOCK
FLANGE
N~~, ~'I
FRONT BEARING
SEAL
RtTAINER
FIG. 62- Pinion and Bearing Retainer
FIG.
64-
Removing or Installing
Pinion and Retainer Assembly
SHIM
FIG.
65-
Installing Oil Seal
entia! side bearings on the case hubs.
2. Place the cups on the bearings
and set the differential case in the
carrier.
3. Install the bearing caps and
adjusting nuts as outlined in step
11
thru
14
under Assembly and Instal-
lation of the Differential Case in this
section.
PINION
PILOT
BEARING
mb;
PILOT
BEARING
E 1782-A
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