The
rear axle
Section K
1
Description
The rear axle
is
of
the spiral bevel gear.
semi-floating
type, having a ratio
of
3·545 : 1.
A
two
piece axle case assembly houses a taper
roller bearing differential unit
with
the crown
wheel bolted
to
the casting.
The pinion sits in the centre
of
the housing
case and is supported by taper
roller bearings.
Bearing
preload in the differential assembly is
controlled by shims between the bearings and
differential casting.
The depth
of
mesh between the pinion and
crown
wheel is controlled by a spacing washer
and
ad
ditional shims
as
required.
The crown
wheel and pinion are a selected pair,
and identifying numbers are etched on both.
This condition
applies to spare parts and
production
alike. Under
no
circumstances may
an
unmatched
crown
wheel and pinion be
fitted.
Figure
1 Rear axle
1
Axl
e tube R.H.
2
Ax
le tube
L.H
.
3 Stud.
ax
le
caso
4
Lo
c
kw
as
her
5 Nut
6
Bra
cket. brake pipe
7
Filler plug
8 Axle shaft c
/w
collar
9 Bearing.
ax
le end
10 Oil
sea
l
11
Hub assembly
1?
C:t
ll
l"f
1 3 Key. hub securing
14
Washer. hub secunng
15 Nu
t.
hub securing
16 Taper bearing
17
Shim, differential beanng
18 Crown
wh
ee
l
an
d pinion
19 Bolt, crown·wheel
20
Differential
case
21
Wheel.
d1ff
erenual
22
Thrust washer
23
Pinion. d
if
ferent•al
')A
Ts...
.......
. . ..
......
.......
..
Routine maintenance
Top
up
the rear axle oil level every 3.
000
miles
(5.000km)
if
necessary. The rear axle breather
hole, located in the LH axle tube, should
be
checked and cleaned out.
if
necessary, every
3,000 miles (5,000km).
Note
:
If
the breather hole is continually
blocked, pressure
will
build
up
within
the axle
unit
and cause
oi
l leakage from the pinion and
halfshaft seals.
To remove
ax
le
unit
1
If
a ramp is not available. jack
up
the rear
of
the vehicle. place suitable stands under the
chassis and remove road
wheels.
2 Remove drive shaft (see
Se
ctio
n J).
3 Disconnect handbrake cables from operating
levers on the wheel back plates by removing
the
split pin and washer and withdrawing the
clevis pin. Then disconnect cables from rear axle
locations.
25 Differential pin
26 Locking pin
27
Bear
ing.
p1n1on
h
ead
28 Bearing. pinion tall
29 Collapsible spacer
30 Spa
ce
r. pinion h
ead
31
O
il
seal
pinion
32
Coupling flange
33 Washer
34
Nut
35 Set screw
'"'I!!
I .,.
.,.I
_.,
..............
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