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4-10
sion, so that the chalk marks on
the slip yoke and the transmission
extension housing are aligned.
16. Position the drive shaft to the
axle
U-joint flange, aligning
the
scribe marks made on the drive shaft
rear end yoke and the axle U-joint
GROUP 4-REAR AXLE
flange during the removal procedure
(Fig. 12). Connect the shaft to the
flange by installing the U-joint bear-
ing caps that hold the spider to the
flange. Install the bearing cap re-
taining bolts and torque to specifica-
tions.
EJ
REMOVAL AND INSTALLATION
REAR AXLE HOUSING
ASSEMBLY
REMOVAL
1.
Raise the car on a hoist or the
rear of the car on a suitable jack.
Place a jack stand under each side,
at the rear of the spring hangers.
2. Lower the car until the weight
is supported by the jack stands.
3. Drain
the
axle
housing
by
loosening the rear cover bolts.
4. Remove the retaining bolts and
washers, and remove the bumper,
bracket and spacers from the hous-
ing.
5. To maintain proper drive line
balance, the drive shaft should be
installed in its original position. To
insure proper installation at assem-
bly, make scribe marks on the drive
shaft rear end yoke and the axle
U-joint flange (Fig. 12). Also, make
chalk marks on the drive shaft front
slip yoke and the transmission ex-
tension housing.
6. Disconnect the rear end of the
drive shaft by removing the two
U-joint bearing caps that hold the
spider to the axle U-joint flange.
Be
careful to avoid dropping the loose
universal joint bearing cups. Slide
the drive shaft forward, and remove
it from the transmission extension
housing. Install tool 7657-J in the
transmission housing to prevent leak-
age.
7. Remove the two rear wheel and
tire assemblies.
8. Remove the Tinnerman nuts
that secure each brake drum to the
axle shaft flange, and then remove
the drum from the flange.
9. Working through the hole pro-
vided in each axle shaft flange (Fig.
2),
remove the nuts that secure the
wheel bearing retainer to the axle
housing. Pull each axle shaft and
hearing assembly out of the axle
housing using the tool ~hown in
Fig. 3.
10. Remove both wheel hearing oil
seals (Fig. 13).
11. Disconnect the rear shock ah-
sorbers from the mounting studs on
the axle housing.
12. Remove the brake line-to-axle
housing retaining clips and the re-
taining bolt holding the junction
block to the axle housing.
13. Remove
the
parking brake
cable retainers from the U-bolts.
14. Remove the brake backing
plates and wire them to the under-
body. Do not disconnect the brake
lines.
15. Remove the axle U-bolt re-
taining nuts.
16. Remove the U-bolts, the spring
center mounting, insulator retainers
and the insulators.
17. Remove the axle housing as-
sembly.
INSTALLATION
1. Clean the axle housing and
shafts using kerosene and swabs. To
avoid contamination of the grease
in the sealed ball bearings, do not
allow any quantity of solvent di-
rectly on the wheel bearings.
If the axle housing is being re-
placed, disassemble the drive pinion
and differential case assembly from
the old housing and assemble them
in the replacement housing as des-
scribed in Part 2-2, Section 4. Re-
move the bolts that retain the brake
backing plate and wheel bearing re-
tainer from the old housing flanges.
E1406-A
FIG.
13-Rear Wheel Bearing
Oil Seal Removal
(066)
17. Install the spacers, bumper
bracket, and bumper on the hous-
ing, and secure with the retaining
bolts and lockwashers.
18.
Check the lubricant level, and
add whatever amount of specified
lubricant is necessary. Lower the car.
Position the bolts in the replacement
housing flanges.
2. Soak two new rear wheel bear-
ing oil seals in
SAE 1 0
oil for
~
hour before installation. Wipe a
small amount of an oil resistant
sealer on the outer edge of each
seal before it is installed.
Do
not put
sealer on
the
sealing lip. Install
the oil seals in the ends of the rear
axle housing with the sealing lip
toward the housing (Fig. 14).
3. Position the rear axle housing
on the rear springs. Position the
spring center mounting upper and
lower insulators and retainers, the
shim wedge, and the U-bolts.
4. Install the U-bolt retaining nuts
and torque to specifications. Make
sure that the spring lower insulator
contacts the upper retainer.
5. Install the brake backing plates
with new gaskets on the axle hous-
ing flanges.
6. Connect
the
parking
brake
cables to the U-bolts with the hook
type retainers.
7. Install the junction block on
the axle housing and secure with
the retaining bolt. Position the brake
line to the axle housing, and secure
with the retaining clips.
8.
Raise the rear axle housing and
springs enough to allow connecting
the rear shock absorbers to the
FIG.
14-Rear Wheel Bearing
Oil Seal Installation
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