traction control FORD MUSTANG 1969 Volume One Chassis

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