1969 FORD MUSTANG ECU

04-02-08
Rear Axle — Removable Carrier Type

04-02-08

REMOVAL AND INSTALLATION

CARRIER ASSEMBLY

REMOVAL

1.
Raise the vehicle on a hoist and

remove the two rear wheels and tires.

2.
Remove the two brake drums (3

Tinnerman nuts at each drum) from

the axle shaft flange studs. If diffi-

culty is experienced in removing the

drums, remove the brake adjuster

knockout slug or rubber plug (if so

equipped) and back off the brake

shoes.

3.
Working through the hole pro-

vided in each axle shaft flange, re-

move the nuts that secure the rear

wheel bearing retainer plate. Pull each

axle shaft assembly out of the axle

housing using axle shaft remover,

Tool 4235-C. (Fig. 4). Care must be

exercised to prevent damage to the

production-type synthetic oil seal, if so

equipped. Any roughing or cutting of

the seal element during removal or in-

stallation can result in early seal fail-

ure.
Install a nut on one of the brake

backing plate attaching bolts to hold

the plate to the axle housing after the

shaft has been removed. Whenever a

rear axle shaft is replaced, the wheel

bearing oil seals must be replaced.

Remove the seals with tool 1175AB.

4.
Make scribe marks on the drive

shaft end yoke and the axle U-joint

flange to insure proper position at as-

sembly. Disconnect the drive shaft at

the rear axle U-joint. Hold the cups

on the spider with tape. Mark the

cups so that they will be in their orig-

inal position relative to the flange

when they are assembled. Remove the

drive shaft from the transmission ex-

tension housing. Install an oil seal re-

placer tool in the housing to prevent

transmission leakage. Refer to the

transmission group for the appropriate

tool.

5.
Clean area around carrier to

housing surfaced with a wire brush and

wipe clean, to prevent dirt entry into

the housing. Place a drain pan under

the carrier and housing, remove the

carrier attaching nuts, and drain the

axle.
Remove the carrier assembly

from the axle housing.

INSTALLATION

Synthetic production-type wheel

bearing seals must not be cleaned,

soaked or washed in cleaning solvent.

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 directly on the

wheel bearings. Clean the mating sur-

faces of the axle housing and carrier.

2.
Position the differential carrier

on the studs in the axle housing using

a new gasket between carrier and

housing. Install the carrier-to-housing

attaching nuts, and torque them to

specifications.

3.
Remove the oil seal replacer tool

from the transmission extension hous-

ing. Position the drive shaft so that

the front U-joint slip yoke splines to

the transmission output shaft.

4.
Connect the drive shaft to the

axle U-joint flange, aligning the scribe

marks made on the drive shaft end

yoke and the axle U-joint flange dur-

ing the removal procedure. Install the

U-bolts and nuts and torque to speci-

fications.

5.
If the synthetic, production-type

wheel bearing seals were replaced with

service-type leather seals, soak the

new rear wheel bearing oil seals in

SAE 10 oil for 1/2 hour before instal-

lation. Wipe a small amount of an oil

resistant sealer on the outer edge of

each seal before it is installed. Do not

put any of the sealer on the sealing

lip.
Install the oil seals in the ends of

the rear axle housing with one of the

tools shown in Figs. 10 and 12.

Tool

T65F-1177.A

E 1571-A

FIG. 12—Rear Axle Shaft Bearing

Seal Installation

6. Install the two axle shaft assem-

blies in the axle housing. Care must

be exercised to prevent damage to the

oil seals. The shorter shaft goes into

the left side of the housing.

Carefully slide the axle shaft into

the housing so that the rough forging

of the shaft will not damage the oil

seal. Start the axle splines into the

differential side gear, and push the

shaft in until the bearing bottoms in

the housing.
7.
Install the bearing retainers on

the attaching bolts on the axle housing

flanges. Install the nuts on the bolts

and torque to specifications.

8. If the rear brake shoes were

backed off, adjust the brakes as out-

lined in Part 2-1 and install rubber

plugs in the adjuster slots.

9. Install the two rear brake drums

and the drum Tinnerman nuts.

10.
Install the rear wheels and tires.

11.
Fill the rear axle with specified

lubricant.

AXLE HOUSING (COIL

SPRING SUSPENSION)

REMOVAL

1.
Remove the carrier assembly

from the axle housing as outlined in

Differential Carrier Removal and In-

stallation.

2.
Position safety stands under the

frame rear members, and support the

axle housing with either a floor jack

or hoist.

3.
Disengage the brake line from

the clips that retain the line to the

axle housing.

4.
Disconnect the vent tube from

the rear axle housing.

5.
Remove the brake backing plate

assemblies from the axle housing, and

support them with wire. Do not dis-

connect the brake line.

6. Disconnect the lower studs of the

two rear shock absorbers from the

mounting brackets on the axle housing

(Fig. 13 and 14).

7.
Remove the attaching nut and

washer, and disconnect the track bar

from the mounting stud on the axle

housing bracket.

8. Lower the axle housing until the

coil springs are released. Lift out the

coil springs and insulators.

9. Remove the nuts, washers and

pivot bolts that connect the suspension

lower arms to the axle housing. Dis-

connect both arms from the axle

housing.

10.
Disconnect the upper suspen-

sion arm from the axle housing by re-

moving the pivot bolt, nut, lock wash-

er and the two eccentric washers (Fig.

13 and 14).

11.
Lower the axle housing and re-

move it from under the vehicle.

INSTALLATION

1.
Transfer the track bar mounting

stud from the old to the new housing.procarmanuals.com

NUT-33847-S8
9/16-12
100-130 LB FT.

*-34785-S7

-CAM-5A637 (2 REQUIRED)
• NUT-55754-S7

9/16-12
60-85 LB. FT.

4002 (2 REQUIRED)
• BOLT-304907-S2

9/16-12
80-105 LB. FT.
NO.
4 CROSSMEMBER-5029

VENT TUBE-4A001

NUT-34664-S

3/8-24
(2 REQUIRED)

15-25 LB. FT.

WASHER-18041

(2 REQUIRED)
BOLT-559bl-S2

(2 REQUIRED)
TRACK BAR STUD-4269

•110-140 LB. FT.
VENT-4338

VENT MUST POINT

TO THE REAR
CLIP-374998-S100

BUMPER ASSEMBLY-4906
BUSHING-500939

(4 REQUIRED)

WASHER-18171

(2 REQUIRED)

BOLT-40923-S2

(2 REQUIRED)
BOLT-39883-S8

(4 REQUIRED)

9-13 LB. FT.
NUT-33847-

9/16-12*100-130
LB. FT

L
OC
KWASHE R -34
785
-S 7
BACKING PLATE

ASSEMBLY

*2290 R.H. #2210 L.H.
REAR AXLE ASSEMBLY

4001 REFERENCE
TRACK BAR AND

BUSHING ASSEMBLY-5A639

NUT-55754-S7
9/16-12
80-105 LB. FT.

TRACK BAR AND

oJSHfNG ASSEMBLY

5A639
PARKING BRAKE

CABLE »2A635 R.H

•2A809 L.H.

(2 REQUIRED)
SHOCK ABSORBER-18080'

REFERENCE (2 REQUIRED)

•BOLT-2248

(8 REQUIRED)

• SEAL-2256

(2 REQUIRED)

PRONGS MUST BE SECURELY

LOCKED IN PLACE
WHEEL-1007

(2 REQUIRED)

INSULATOR-5536

(4 REQUIRED)
TIRE VALVE-1700

(2 REQUIRED
TIRE VALVE

XTENSION-1705©

(2 REQUIRED)

FRAME ASSEMBLY-5005

LOWER ARM-5A648

DRIVE SHAFT ASSEMBLY-4602
SPRING-5560

(2 REQUIRED)

• NUT-34447-S8
7/16-20

(8 REQUIRED)

30-45 LB. FT.

•BRAKE DRUM-1126

(2 REQUIRED)

TIRE-1508

(2 REQUIRED)

• NUT-372188-S32 (6 REQUIRED)

ASSEMBLE NUTS TO HOLD DRUM ASSEMBLY

SECURELY AGAINST FLANGE
BOLT-379334-S8

9/16-12
(2 REQUIRED)
NUT-375022-S2

70-90 LB. FT. NUT

90-120 LB. FT. BOLT
NUT-375022-S2

(2 REQUIRED)

-90 LB. FT. NUT

90-120 LB. FT. BOLT
BOLT-3 79334-S8

(2 REQUIRED)

NUT-34988-S4

(4 REQUIRED)

44-52 LB. FT.

FRAME ASSEMBLY-5005

REFERENCE
2

o

i

O

TO


Q

>

X

TO


O

3

n

Q

©USE 1705 VALVE EXTENSION

WITH FULL WHEEL COVERS

* TORQUE NUT OR BOLT

TORQUE NUT OR STUD

ITEMS MARKED •

PURCHASED AS PART OF

4001 REAR AXLE ASSEMBLY
NUT-375032-S36
1/2-23

(2 REQUIRED) 50-85 LB. FT.

SPRING MUST BE POSITIONED

AS SHOWN FOR R.H. SIDE
SPRING MUST BE POSITIONED

AS SHOWN FOR L.H. SiDE
NUT-375022-S2 (2 REQUIRED)

70-90 LB. FT. NUT

90-120 LB. FT. BOLTl
TIONAL

El 746-A
?

6

FIG. 14—Redr Axle Installation—Thunderbird—Typical Ford, Mercury, Meteor and Continental Markprocarmanuals.com

04-02-11
Rear Axle — Removable Carrier Type

04-02-11

If the axle housing is new, install a

new vent. The hose attaching portion

must face toward the front of the ve-

hicle.

2.
If leather-type wheel bearing ser-

vice seals are to be installed, soak the

new rear wheel bearing oil seals in

SAE 10 oil for 1/2 hour before instal-

lation. Wipe a small amount of an oil

resistant sealer on the outer edge of

each seal before it is installed. Do not

put any of the sealer on the sealing

lip.
Install the oil seals in the ends of

the axle housing with one of the tools

shown in Fig. 10 and 12.

3.
Position the replacement axle

housing under the vehicle, and raise

the axle with a hoist or floor jack.

Connect the suspension lower arms to

their mounting brackets on the axle

housing with pivot bolts and nuts. Do

not tighten the bolts and nuts at this

point.

4.
Position the suspension upper

arm in its mounting bracket on the

axle housing, and install the adjusting

bolt, eccentric washers, lock washer

and nut. Leave the bolt and nut loose

at this point.

5.
Position the brake lines to the

axle housing, and secure with the re-

taining clips.

6. Install the brake backing plates

on the axle housing flanges.

7.
Connect the track bar to the

mounting stud, install the washer and

attaching nut, and torque to specifica-

tions.

8. Position the rear coil springs and

insulators in the pockets provided.

9. Connect the lower studs of the

two rear shock absorbers to the

mounting brackets on the axle hous-

ing. Install the attaching nuts, and

torque to specifications.

10.
Connect the vent tube to the

vent on the housing. If axle housing is

new, install a new vent.

11.
Clean the mating surfaces of

the axle housing and differential car-

rier. Position the carrier on the

mounting studs on the housing using a

new gasket between carrier and hous-

ing. Install the copper washers and the

carrier-to-housing attaching nuts, and

torque to specifications.

12.
Make sure that both the front

and rear pivot bolts of the upper and

the two lower arms are loose, and

then raise the axle assembly to con-

trolled curb height (Fig. 15). Hold the

axle at controlled curb height by plac-

ing blocks or pieces of steel pipe be-

tween the axle housing and the bumper

rear screw on the side rail. (See speci-

fications for dimensions.)
FRAME

TIGHTEN ARM

ATTACHING BOLTS

AT 5-45/64 INCH

HEIGHT POSITION
5-45/64 INCH

HEIGHT FOR

INSTALLATION

OF ARMS

E 1600-B

FIG. 75 -Axle Normal Curb

Height and Controlled Height

for Arm Installation

13.
With the axle at controlled curb

height, torque the suspension upper

and lower arm front pivot bolts and

nuts to specifications. Torque the

lower arm-to-axle housing pivot bolts

and nuts to specifications.

14.
Remove the oil seal replacer

tool from the transmission extension

housing. Position the drive shaft so

that the front U-joint slip yoke splines

to the transmission output shaft.

15.
Connect the drive shaft to the

U-joint flange, aligning the scribe

marks made on the drive shaft end

yoke and the axle U-joint flange dur-

ing the removal procedure. Install the

U-bolts and nuts and torque to speci-

fications.

16.
Carefully slide the two axle

shaft assemblies in the axle housing.

The shorter shaft goes into the left

side of the housing. Use care in slid-

ing the axle shafts into the housing so

that the rough forging of the shaft will

not damage the oil seal. Start the axle

splines into the differential side gear,

and push the shaft in until the rear

wheel bearing bottoms in the housing.

17.
Install the rear wheel bearing

retainers on the attaching bolts on the

axle housing flanges. Install the nuts

on the bolts and torque to specifica-

tions.

18.
If the rear brake shoes were

backed off, adjust the brakes as out-

lined in Part 2-1, and install rubber

plugs in the adjuster slots.

19.
Install the two rear brake

drums and the drum attaching (Tin-

nerman) nuts.

20.
Install the rear wheels and tires.

21.
Fill the rear axle to the bottom

of the filler plug hole located in either

the carrier casting or housing cover

with specified lubricant. Be sure that

the axle is in operating position.

22.
Road test the vehicle to be sure

that pinion and driveshaft angles are
correct. Any shudder during heavy ac-

celeration, or deceleration may require

a pinion and driveshaft angle re-

adjustment as detailed in Driveshaft

and Pinion Angle Adjustment, Group

3,
Part 3-2.

AXLE HOUSING (LEAF

SPRING SUSPENSION)

REMOVAL

1.
Raise the vehicle and support it

with safety stands under the rear

frame member.

2.
Drain the lubricant from the

axle.

3.
Make scribe marks on the drive

shaft end yoke and the axle U-joint

flange to insure proper position of the

drive shaft at assembly. Disconnect

the drive shaft at the drive pinion

flange.

4.
Disconnect the lower end of the

shock absorbers.

5.
Remove the wheels, brake drums

and both axle shafts as outlined in

Section 2.

6. Remove vent hose front vent

tube (Corbin clamp) and remove vent

tube from brake tube junction and

axle housing.

7.
Remove the hydraulic brake T-

fitting from the axle housing. Do not

open the hydraulic brake system lines.

Remove the hydraulic brake line from

its retaining clip on the axle housing.

8. Remove both axle shaft oil seals

with the tool shown in Fig. 8.

9. Remove both brake backing

plates from the axle housing and sus-

pend them above the housing with

mechanic's wire. The hydraulic brake

lines and the parking brake cables are

still attached to the brake backing

plates.

10.
Support the rear axle housing

on a jack, and then remove the spring

clip nuts. Remove the spring clip

plates (Fig. 16).

11.
Lower the axle housing and re-

move it from under the vehicle.

12.
If the axle housing is being re-

placed, transfer all the differential and

pinion parts to the new housing. See

Section 4, Major Repair Operation*.

INSTALLATION

1.
Raise the axle housing into posi-

tion so that the spring clip plates can

be installed. On a Montego or Fair-

lane,
position the spring upper insula-

tors and retainers between the axle

housing and springs and install theprocarmanuals.com

04-02-14

Rear Axle
—
Removable Carrier Type

04-02-14

DIFFERENTIAL

BEARING
Tool—
7
571-4220-A

T66P°4220-P

E1015-B

FIG. 18—Removing Differential

Bearing—Ford

taching bolts. Applying pressure will

contain
the
spring pressure between

the differential case
and
cover until

after
the
bolts
are
removed,
and
there-

by prevent stripping
of the
threads.

3.
Release
the
hydraulic press
ram,

and remove differential case cover.

4.
Remove
the
Belleville spring

(Fig.
54).

5.
Remove
the
steel
and the
bonded

clutch plates.

6. Remove
the
differential clutch

hub,
side gear,
and
thrust washer.

7.
Remove
the
ring gear from
the

differential case.

8. Drive
out the
differential pinion

shaft lock
pin.

9. With
a
brass drift, drive
out the

differential pinion shaft. Then remove

the pinion gears,
the
other side gear,

and thrust washers.
E 1724-A

FIG. 20—Driving
Out
Differential

Pinion Shaft

TRACTION-LOK

DIFFERENTIAL

1.
Remove
the
differential case

from
the
carrier
and
remove
the
bear-

ings from
the
differential case
in the

same manner
as the
conventional
dif-

ferential case.

2.
Remove
ten
bolts securing
the

ring gear
to the
differential case
as-

sembly.
The
ring gear must
be re-

moved
in
order
to
separate
the
case

halves.

3.
Remove
the
ring gear
by
tapping

the gear with
a
soft hammer
or
press

the gear from
the
case.

4.
Place
the
differential case
in a

press
to
load
the
bearing journals
so

that
the
pre-load
of the
springs
is ov-

ercome (approx.
1,500
lbs.).
(If a

press
is not
available,
two 7/16
inch

bolts
and
nuts
can be
used
in the
ring

gear mounting holes
(one on
each

side)
to
compress
the
case halves
to-
gether
and
overcome pre-load spring

tension.) Then, while
the
case
is
still

under pressure, loosen
the two
Allen

or Phillips head screws which hold
the

case halves together until
one or two

threads
of the
screws remain engaged.

Remove
the
case assembly from
the

press.
Tap on the
cover
to
spring
it

loose; then, remove both screws.

5.
With
the
cover facing down, lift

off
the
case. Remove
the
pre-load

spring plate
and
four pre-load springs.

6. From
the
cover remove
the
side

gear, four clutch plate
ear
guides,

clutch
hub,
friction
and
steel clutch

plates
and
shim(s).

7.
With
a
suitable drift, drive
out

the pinion shaft lock pins from
the

case.

8. With
a
brass drift, drive
out the

long pinion shaft from
the
case. Drive

from
the end
opposite
the
lock
pin

hole.

9. Remove
the two
short pinion

shafts using
a
drift, driving each shaft

from
the
center outward. Lift
out the

center block, then remove
the
pinion

gears,
thrust washers
and
side gear

and thrust washer.

10.
If the
differential bearings
are

removed,
the
bearings
can be
installed

in
one of the
following ways:

a. With
the
differential case
and

cover completely assembled.

b.
On the
case
or
cover when disas-

sembled. However, when pressing
the

bearings
on the
cover,
a
block
of

wood
or
fiber must
be
used
as
shown

in Fig.
21 in
order
to
avoid damage
to

the cover.

E 1709-A

FIG. 79—Removing Differential

Pinion Shaft Lock
Pin
DIFFERENTIAL BEARING

E1892-A

FIG. 21—Installing Differential Bearing—Traction-Lokprocarmanuals.com

04-03-04
Rear Axles — Integral Carrier Type

04-03-04

1.
Remove the wheel cover, wheel

and tire from the brake drum.

2.
Remove the Tinnerman nuts that

secure the brake drum to the axle

housing flange, and then remove the

drum from the flange.

3.
Working through the hole pro-

vided in each axle shaft flange, re-

move the nuts that secure the wheel

bearing retainer plate. Then pull the

axle shaft assembly out of the axle

housing (Fig. 2). The brake backing

plate must, not be dislodged. Install

one nut to hold the plate in place after

the axle shaft is removed.

4.
If the rear wheel bearing is to be

replaced, loosen the inner retainer

ring by nicking it deeply with a cold

chisel in several places (Fig. 3). It will

then slide off easily.

5.
Remove the bearing from the

axle shaft with the tool shown in Fig.

4 or 5. If the push-puller operation

shown in Fig. 5 is used, be sure that

the puller arms contact the flat sur-

face of the axle shaft flange rather

than the bolt heads. Also with this

method, be careful not to damage or

burr the oil seal journal as the bearing

breaks loose.

6. Whenever a rear axle shaft is re-

placed the oil seal must be replaced.

Remove the seal with the tools shown

in Fig. 8. Soak new oil seals in SAE

10 oil for 1/2 hour before installing.

7.
Inspect the machined surfaces of

the axle shaft and the axle housing for

rough spots or other irregularities

which would affect the sealing action

of the oil seal. Check the axle shaft

splines for burrs, wear or damage.

Carefully remove any burrs or rough

spots.
Replace worn or damaged

parts.

8. Lightly coat wheel bearing bores

with axle lubricant.

9. Place the retainer plate on the

axle shaft, and press the new wheel

bearing on the shaft with the tool

shown in Fig. 4 or 5. The bearing

should seat firmly against the shaft

shoulder. Do not attempt to press on

both the bearing and the inner retain-

er ring at the same time.

10.
Using the bearing installation

tool, press the bearing inner retainer

ring on the shaft until the retainer

seats firmly against the bearing.

11.
Wipe all lubricant from the in-

side of the axle housing in the area of

the oil seal before installing the new

seal.

12.
Wipe a small amount of oil res-

istant sealer on the outer edge of the

seal before it is installed. Do not put

sealer on the sealing lip.

13.
Rear wheel oil seals with syn-
thetic sealing elements have been in-

corporated in production. However,

only leather seals will be used as re-

placements for the synthetic sealing

element seals. Install the new oil seal

with the tools shown in Fig. 8. Instal-

lation without use of the proper tool

will distort the seal and cause leakage.

Be sure the new seal has been soaked

in SAE 10 oil for 1/2 hour.

14.
Carefully slide the axle shaft

into the housing so that the rough

forging of the shaft will not damage

the oil seal. Start the axle splines into

the side gear, and push the shaft in

until the bearing bottoms in the housing.

15.
Install the bearing retainer plate

on the mounting bolts at the axle

housing, and install the attaching nuts.

Torque the nuts to specifications.

16.
Install the brake drum and the

drum retaining nuts.

17.
Install the wheel and tire on the

drum, and install the wheel cover.

REMOVAL AND REPLACEMENT

OF DRIVE PINION OIL SEAL

Synthetic seals must not be cleaned,

soaked or washed in cleaning solvent.

Replacement of the pinion oil seal

involves removal and installation of

only the pinion shaft nut and the uni-

versal joint flange. However, this op-

eration disturbs the pinion bearing
preload, and this preload must be

carefully reset when assembling.

1.
Raise the vehicle and install safe-

ty stands. Remove the rear wheels and

brake drums.

2.
Make scribe marks on the drive

shaft end yoke and the axle U-joint

flange to insure proper position of the

drive shaft at assembly (Fig. 14). Dis-

connect the drive shaft from the axle

U-joint flange. Be careful to avoid

dropping the loose universal joint

bearing cups. Hold the cups on the

spider with tape. Mark the cups so

that they will be in their original posi-

tion in relation to the flange when

they are assembled. Remove the drive

shaft from the transmission extension

housing. Install an oil seal replacer

tool in the transmission extension

housing to prevent transmission leak-

age.
Refer to the transmission group

for the appropriate tool.

3.
Install an in-lb torque wrench on

the pinion nut Fig. 6. Record the tor-

que required to maintain rotation of

the pinion shaft through several revo-

lutions. \

4.
While holding the flange with the

tool shown in Fig. 9, remove the inte-

gral pinion nut and washer.

5.
Clean the pinion bearing retainer

around the oil seal. Place a drain pan

under the seal, or raise the front of

the vehicle higher than the rear.

KJ
E
I582-A
Tool - 1175-AB

and T50T-100-A

^___ or
J
775-
AE

Torque Wrench

^ mm i e
icot
A

E 1681-A

FIG. 6—Checking Pinion FiG 7_Removing
pjnjon
Sea,

Bearing Preload

,Tool-T58L-101-A or U75-AE

Tool-T50T-100-A

REMOVAL
Tool-60K-1177-B

or 1177-BorC

INSTALLATION E1214-D

FIG. 8—Removing and Installing Axle Shaft Sealprocarmanuals.com

04-04-02
Rear Axle
—
Ford Light-Duty (WER)
04-04-02

DIFFERENTIAL

PINION-4215
RING GEAR
-

4209
LEFT AXLE

SHAFT
-
4235

1

DRIVE PINION
-

4209

SEAL
-
4676

FLANGE-4851

DEFLECTOR -4859

SEAL-
1177

f\G.
7
—Rear Axle Assembly—Light Duty
(WER)
Axle
E 1632-A

IN-VEHICLE ADJUSTMENTS AND REPAIRS

REAR AXLE SHAFT, WHEEL

BEARING
AND OIL
SEAL

REPLACEMENT

REMOVAL

Synthetic wheel bearing seals
are

used
for
production
and as
service
re-

placements. Removal
and
insertion
of

rear axle shafts must
be
performed

with caution.
The
entire length
of the

shaft (including spline)
up to the
seal

journal must pass through
the
seal

without contact.
Any
roughing
or cut-

ting
of the
seal element during axle

removal
or
installation will result
in

early seal failure.

1.
Raise
the
vehicle
on a
hoist.
2.
Remove
the
wheel(s)
and
tire(s)

from
the
brake drum(s).

3.
Position
a
drain
pan and
loosen

the cover
to
differential housing
re-

taining bolts. Drain
the
housing.

4.
Remove
the
attaching (Tinner-

man) nuts that secure
the
brake

drum(s)
to the
axle shaft flange(s),

and then remove
the
drum(s).

5.
Remove
the
differential housing

cover bolts, cover
and
gasket. Discard

the gasket. Remove
the
drain
pan.

6. Position safety stands under
the

rear frame member. Lower
the
hoist

and allow
the
axle
to
lower
as far as

possible.

7.
Working through
the
differential

case opening, remove
the
pinion shaft
lock bolt
and the
pinion shaft
(Fig. 2).

8. Push
the
axle shaft(s) inward

toward
the
center
of the
axle housing.

Remove
the
C-lock(s)
(Fig. 3)
from

the inner
end of the
axle(s). Remove

the axle shaft(s) from
the
housing.
Ex-

treme care must
be
used
to
avoid
con-

tact
of the
axle shaft seal
lip
with
any

portion
of the
axle shaft except
the

seal journal.

9. Remove
the
bearing
and oil
seal

from
the
housing
as
shown
in Fig. 4.

10.
Inspect
the
machined surface
of

the axle shaft
and the
axle housing
for

rough spots
or
other irregularities

which would affect
the
sealing action

of
the oil
seal. Check
the
axle shaft

splines
for
burrs, wear
or
damage.procarmanuals.com

04-04-04
Rear Axle — Ford Light-Duty (WER)

04-04-04

REMOVAL AND INSTALLATION

AXLE HOUSING

Refer to Fig. 7.

REMOVAL

1.
Raise the vehicle on a hoist.

2.
Remove the wheels and tires

from the brake drums.

3.
Position a drain pan and loosen

the rear axle cover to housing attach-

ing bolts. Drain the housing.

4.
Remove the attaching (Tinner-

man) nuts that secure the brake drums

to the axle shaft flanges, and then re-

move the drums (Fig. 7).

5.
Remove the axle housing cover

bolts,
cover and gasket. Discard the

gasket. Remove the drain pan.

6. Disconnect the drive shaft at the

drive pinion companion flange. Re-

move the drive shaft from the trans-

mission extension housing. Install an

oil seal replacer tool in the transmis-

sion housing to prevent leakage. Refer

to the transmission group for the ap-

propriate tool.

7.
Disconnect the lower end of the

shock absorbers at the mounting

brackets.

8. Disconnect the track bar from

the axle housing stud. If the axle

housing is to be replaced, transfer the

stud to the new housing.

9. Position safety stands under the

rear frame members. Lower the vehi-

cle with the hoist and allow the axle

to lower far enough to relieve rear

spring tension.

10.
Remove the pinion shaft lock

bolt and pinion shaft (Fig. 2), differ-

ential pinion gears and thrust washers.

11.
Push the axle shaft(s) inward

toward the center of the axle housing.

Remove the C-locks from the inner

ends of the axles (Fig. 3). Remove the

axle shafts from the housing. Extreme

care must be used to avoid contacting

the axle shaft seal lip with any portion

of the axle shaft other than the seal

journal.

12.
Disconnect the vent hose from

the rear vent tube and remove all

brake lines from the axle housing re-

taining clips.

13.
Remove the brake backing

plate attaching nuts and the plates

from the axle housing. Suspend the

plates above the axle housing with

mechanics wire. The hydraulic brake

lines and the parking brake cables will

remain attached to the brake backing

plates.
14.
Support the rear axle housine

on a jack.

15.
Remove the right and left rear

springs and insulators.

16.
Remove the nuts, washers and

pivot bolts that connect the suspension

lower arms to the axle housing. Dis-

connect both arms from the axle

housing.

17.
Disconnect the upper suspen-

sion arm from the axle housing by re-

moving the pivot bolt, nut, lock wash-

er and two eccentric washers.

18.
Lower the rear axle to the floor

with the jack and remove the axle

from under the vehicle.

19.
Remove the wheel bearings and

oil seals with the tool shown in Fig. 4.

20.
If the axle housing is being re-

placed, transfer all the differential and

pinion parts to the new housing. Refer

to Section 4, Major Repair Operation

for the procedure.

INSTALLATION

1.
Lightly coat the wheel bearing

rollers with axle lubricant. Install

wheel bearings in the axle housing

with the tool shown in Fig. 5. The

bearings should seat firmly against the

shoulder.

2.
Wipe all lubricant from the oil

seal bore before installing the seal. If

axle housing is being replaced, new

seals must be installed.

3.
Inspect the original seal for

nicks,
scuffs or abnormal wear, and

replace if necessary. New seals are

pre-packed with lubricant and do not

require an oil soak.

4.
Install the seal with the tool

shown in Fig. 6. Installation without

the use of the proper tool will distort

the seal and cause leakage.

5. Raise the rear axle into position

under the vehicle with a hoist or floor

jack. Connect the suspension lower

arms to their mounting brackets on

the axle housing with pivot bolts and

nuts.
Do not tighten the mounting

bolts at this point.

6. Position the suspension upper

arm in its mounting bracket on the

axle housing and install the adjusting

bolt, eccentric washers, lock washer

and nut. Do not tighten the mounting

bolt at this point.

7.
Place the rear coil springs and

insulators into position in the pockets

provided.
8. Place the brake backing plates

on the axle housing flanges, install 4

attaching bolts and nuts and torque

them to specifications.

9. Position the brake lines to the

axle housing and secure them with the

retaining clips. If the axle housing is

new, install a new vent. When install-

ing the new axle vent apply a small

amount of Locktite (C5AZ-19554-B)

to prevent oil leakage between vent

and axle housing. Connect the vent

tube to the vent.

10.
Install the pinion side gears and

thrust washer.

11.
Slide the axle shafts into place

in the axle housing. Exercise care that

splines or any portion of the axle

shafts do not damage the oil seals and

that they engage with the splines of

the differential side gears.

12.
Install the axle shaft C-lock O-

ring and C-lock on the inner end of

the shaft and push the shaft outward

so that the shaft lock seats in the

counterbore of the differential side

gear.

13.
Position the pinion differential

gears and thrust washers 180 degrees

apart to the differential side gears.

Revolve the gear assembly until the

holes in the differential case are al-

igned with the pinion gears.

14.
Position the differential pinion

shaft through the case and pinions, al-

igning the hole in the shaft with the

lock bolt hole. Install the lock bolt

and tighten it to specification.

15.
Clean the gasket mounting sur-

face of the rear axle housing and the

cover. Install a new cover gasket,

cover and the attaching bolts. Torque

the bolts to specification.

16.
Raise the rear axle on a hoist

and remove the safety stands.

17.
Connect the track bar to the

mounting stud. Install the washer and

nut. Torque the nut to specification.

18.
Connect the two rear shock ab-

sorbers to the mounting brackets on

the axle housing and torque the at-

taching nuts to specification.

19.
Make sure that both the front

and rear pivot bolts of the upper and

the two lower arms are loose, then

raise the axle assembly to the con-

trolled height (Fig. 8). Hold the axle

at the controlled height by placing

blocks or pieces of steel pipe between

the axle housing and the bumper rear

screw on the side rail.procarmanuals.com

CLIP -

353473-S8'
.CROSS MEMBER
NUT-33847-S8-.

9/16-12

100-130 LB. FT.
.LOCK WASHER -

34785-S7

HOSE -4A001

BOLT-

380826-S2
NUT - 34664-S -

3/8-24
2REQ'D

15-25 LB. FT.
NUT - 375022-S2

70-90 LB. FT. NUT 0PT

90-120 LB. FT. BOLT
UPPER ARM ADJUST

ING CAM - 5A637

2 REQ'D.

NUT - 33847-S8

9/16-12

100-130 LB. FT.

SPRING MUST BE POSITIONED

AS SHOWN FOR R.H. SIDE

NUT - 55754-S7 -

9/16-12

80-105 LB. FT.
LOCK WASHER -

34785-S7

WASHER -

44741-S8
BUMPER

4002

2 REQ'D.

VIEW FOR PASSENGER

CARS SAME AS VIEW Z

EXCEPT AS SHOWN

SPRING MUST BE

POSITIONED AS

SHOWN FOR L.H. SIDE

BOLT -

304685-S

8 REQ'D
BOLT - 381877-S2

4 REQ'D.

9-13 LB. FT.

BRAKE DRUM -

1126 2 REQ'D

NUT - 34445-S7

20-30 LB. FT.
TIRE - 1508

2 REQ'D.
LOWER ARM -

5A648

NUT-

375022-S2

2 REQ'D.

70-90 LB. FT. NUT rtnT

90-120 LB. FT. BOLT "0PT
DRIVE SHAFT -

4602 ASSY.

USING SPECIAL TOOL,

ASSEMBLE NUTS TO NUT -

HOLD DRUM ASSEMBLY - 372188-S32

SECURELY AGAINST 6 REQ'D.

FLANGE
NUT -

375032-S36

1/2-13

2 REQ'D.

50-85 LB. FT
PRONGS MUST BE

SECURELY LOCKED /'

PLACE
2209 ASSY. R.H.

2210 ASSY. L.H.

MUST BE USED

FROM THE SAME

SUPPLIER IN

AXLE SETS
HUB CAP-

1130

2 REQ'D.

NUT -

1012

10 REQ'D.

70-115 LB. FT.

VIEWN

VIEW W

VIEW R
NUT - 375022-S2

2 REQ'D

70-90 LB FT. NUT _ nPT

90-120 LB. FT. BOLT
VIEW T

BOLT -*

304907-S2

9/16-12

80-105 LB. FT.
'NUT - 55754-S7

9/16-12

60-85 LB. FT.

VIEW V

E 1633-A

FIG.
7—Rear
Axle Installation—WER Axleprocarmanuals.com