04-02-03
Rear Axle — Removable Carrier Type
04-02-03
is,
it is supported by bearings both in
front of and to the rear of the pinion
gear. Two opposed tapered roller
bearings support the pinion shaft in
front of the pinion gear with a col-
lapsible spacer for 8-3/4 inch or 9
inch ring gear, and a solid spacer used
with the 9 3/8 inch ring gear. A
straight roller (pilot) bearing supports
the pinion shaft at the rear of the pi-
nion gear. Pinion and ring gear tooth
contact is adjusted by adding or re-
moving shims from between the pinion
retainer and the carrier housing.
The differential assembly is mount-
ed on two opposed tapered roller
bearings, which are retained in the
carrier by removable caps. The entire
carrier assembly is bolted to the axle
housing.
Ball bearing assemblies (rear wheel
bearings) are pressed onto the outer
ends of the axle shafts and set in the
outer ends of the axle housing. These
bearings support the semi-floating
axle shafts at the outer ends. The
inner ends of the shafts spline to the
differential side gears. Bearing retain-
er plates hold the shafts in the hous-
ing. The left and right axle shafts are
not interchangeable, the left shaft
being shorter than the right.
CASE
COVER
BELLEVILLE
SPRING
CLUTC
HUB
STEEL
PLATES
BONDED
PLATES
E1741-A
FIG. 2—Limited-Slip Differential
LIMITED-SUP DIFFERENTIAL
The axle assembly, except for the
differential case and its internal com-
ponents, is identical to the convention-
al axle.
A constant-friction locking differen-
tial,
which employs clutch plates to
control differential action, is available
as optional equipment (Fig. 2).
Four steel clutch plates are locked
into the differential cover. Three
bronze, bonded clutch plates are
splined to a clutch hub which, in turn,
is splined to the left axle shaft. A
Belleville spring washer maintains a
constant pressure between the steel
and bonded clutch plates so that the
clutch is always engaged.
TRACTION-LOK
DIFFERENTIAL
The Traction-Lok (torque sensitive)
locking differential (Fig. 3) employs a
multiple disc clutch to control differ-
ential action. Shim(s), which control
side gear mounting distance, four
steel, four friction and one composite
plate (steel on one side and friction
material on the other) stacked on a
clutch hub, and four ear guides are
housed in the differential cover. Lo-
cated in the differential case between
the side gears is a one-piece pre-load
plate and block (four-pinion) and four
calibrated pre-load springs, which
apply an initial force to the clutch
pack. Additional clutch capacity is
derived from the side gear thrust
loads.
The four friction plates are
splined to the clutch hub which in turn
is splined to the left axle shaft, and
the eared steel plates are dogged to
the case; thus, the clutch is always en-
gaged.
PINION SHAFT
4211
PINION SHAFT
RETAINING PINS
359475-S
DIFFERENTIAL
CASE-4204
CASE-TO-COVER
RETAINING SCREWS
50025-S2
SIDE GEAR
THRUST WASHER
4228
CENTER BLOCK
(SHORT PINION PINION
SHAFT SEAT) SHAFT
4420 44207
7
PINION GEAR
THRUST WASHER
4230
PINION GEARS
4215
PINION GEAR
THRUST WASHER
4230
PINION SHAFT
44207
SHIM(S)
(AS REQ'D.)
4A324
DIFFERENTIAL
CASE COVER
4204
PINION GEAR
THRUST WASHER
4230
PRE-LOAD SPRING
PINION GEAR PLATE-4A326
THRUST WASHER
4230
CLUTCH PLATE
EAR GUIDES
(4)
4A323
E 1896-A
FIG. 3—Traction-Lok Differentialprocarmanuals.com
