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N
REAR AXLE
If
replacement
is
necessary,
use
Axle Shaft Oil
Seal D
river W
-186,
Fig. 237. Also
check the
grease
retainer
and
replace
it if
there
is
any
doubt
of
its condition.
Adjust
the
w heel
bearings
as
outlined
in
Section
Q
.
N-5.
DIFFERENTIAL
Differentials
of
both
front
and
rear
axles
are
covered
here with
the
exception of
Powr-Lok. Powr-L
ok
differentials
a re
covered
starting
with Par. N
-
14.
Before disassembling
the differential, it
is
advisable
to
determine
through
inspection
the cause
of
difficulty
or fa ilure
of the p arts. Drain
libricant
from the
d ifferential
housing and then
remove
the
differential
cover.
Wash
the
differential
parts
thoroughly with solvent so the parts can
b
e
care-
fully
inspected.
Should it
be determined by
this
inspection
that
t
h
e
d ifferentia
l
requires
overhauling,
the
axle
must be
removed
from
t
h
e
vehicle.
N-6. Disassembly
•
Refer to
Fig.
238.
a.
Remove the axle shafts.
R
efer to
P
ar.
N
-3
or
N
-4
for rear
axles
and
S
ection
M
for
front
axles.
b.
Remove the
housing
cover and
four
screws
holding
the
two
differential side
bearing caps
in
posifion.
M
ake
sure there are matching
letters or
other
m
arks on the caps
and the housing so
that
each
cap
can
be reinstalled
in
the same position
and
location from
which it is removed.
c
.
I
t is necessary to spread the
carrier
as
the
differential
bearing
has initial
preload.
Use
H
ousing
Spreader
T
ool
W
-129,
as shown in Fig.
239, to
spread
the housing.
Clamp
on
a
d ial
indicator.
From
the
side,
measure the carrier
spread.
When the
spreading force
is
applied,
do
not
exceed
a limit
of
.020"
[0,50 mm.l.
R
emove the dial
indicator.
Care-
fully
pry
the
differential case loose, using pry bars
at t
h
e heads
of
the
ring
gear bolts and carrier
casting.
F
IG.
239-
DIFFERENTIAL
CARRIER SPREADER
200
C
AUTI
ON
:
R emove
the spreader
tool to prevent
the
possibility of
the
carrier
taking
a
set.
FIG
. 240
REMOVING DIFFERENTIAL
d
.
Should the
spreader
tool be
unavailable,
use
two pry
bars, one on
each side
of
the differential
case
opening,
to
pry
out
the
differential as
snown
in
Fig. 240.
e.
Turn
down the lock strap tabs and rerrove the
screws
and
lock
straps h olding
the
differential
ring
gear
to the
differential
case.
f
.
The
differential
shaft
is held in place by
a
lock
pin.
Use
a
small punch
as
shown
in
Fig
.
24
1
to
drive
out the
lock pin.
Remove
the differential
shaft.
g.
Using
care
not
to
lose
the
pinion
thrust washers.
remove
the differential pinion
gears.
h.
T
o
remove
t he
drive
pinion, first
remove
t
h
e
universal
joint
end yoke
assembly.
Use
T
ool
C-3281 to
hold
the shaft
as
shown
in Fig.
242
while
removing
the
nut.
Use Puller.
T ool W
-172,
or
C
-452 to remove the
end
yoke as shown in Fig.
243.
i.
R
emove the pinion
shaft oil
seal. Use Puller.
T
ool
W
-25
1
as
shown in
Fig. 244.
FIG.
2~I -REMOVING
LOCK
PI
N
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