1953 JEEP DJ brake

'Jeep*
UNIVERSAL
SERIES
SERVICE
MANUAL

m f. Disconnect propeller shaft from the differential
companion flange.

g.
Disconnect both front springs from front spring hangers.

h.
Remove spring clip and spring clip plates secur­
ing axle to front springs.

i.
Remove front
wheels
from axle assembly.

j.
Lower
jack
slightly and
pull
axle forward from
under
vehicle.
M-5.
FRONT AXLE SHAFT REMOVAL

Refer
to Fig. M-2.

The
following procedure applies to either right or
left
front axle shaft.

Note:
Axle shafts can be removed without remov­
ing the axle housing from the vehicle. Use the fol­
lowing procedure.
First
raise and support front end
of vehicle, and remove front wheels.

a.
Remove drive
flange
snap
ring.
b-
Remove the hub cap with a puller as shown in

Fig.
M-3.

c.
Remove the axle shaft driving
flange
bolts.

d.
Apply the
foot
brakes and remove the axle shaft
flange
with puller W-163 as illustrated in

Fig.
M-4.
FIG.
M-4—AXLE
SHAFT
DRIVE
FLANGE
PULLER

1—Too!
W-163
e.
Release the locking lip on the lockwasher and
remove the outer nut, lockwasher, adjusting nut

and
bearing lockwasher. Use wrench W-144, Fig.

M-5,
for removal of the nut.
f- Remove the wheel hub and drum assembly

with
the bearings. Be careful not to damage the

oil
seal.
FIG.
M-5—WHEEL
BEARING
NUT
WRENCH

1—Tool
W-144
g.
Remove the hydraulic brake
tube
and the

brake
backing plate screws.

h.
Remove the spindle.
i.
Remove the axle shaft and universal joint as­
sembly.
M-6.
Removing
and
Overhauling Differential

Adjustment
and overhaul of the front axle differen­
tial
assembly is the same as that of a
full
floating

type
rear
axle. Information covering dismantling

and
assembling of this
type
differential is contained
in
Section N.

NOTE:
All service replacement axle assemblies

are
shipped from the factory without lubricant in
the differential.
Lubricant
must be added to the
differential
before
the axles are installed in vehicles.

Use
the grade and quantity of lubricant specified
in
the lubrication section.

After
the axle has
been
installed in the vehicle,

check
to be sure the lubricant level in the dffer-

ential
is level with the
fill
plug opening.
M-7.
AXLE SHAFT UNIVERSAL JOINT SERVICE

Refer
to Fig. M-6 and M-7.

After
the axle shaft and universal joint assembly have
been
removed, the
Cardan
cross universal

joint
can be disassembled and inspected as follows:

a.
Remove the snap rings from the bearing cup assemblies.

b.
Press on the end of one bearing cup assembly

until
the
opposite
bearing is pushed from the yoke

arm.
Turn
the yoke over and press the first bear­ ing back out of that
arm
by pressing on the
exposed

end of the
journal
shaft. To avoid damaging the 279

'Jeep'
UNIVERSAL
SERIES
SERVICE
MANUAL

M
If
the joint binds when assembled, tap the yoke
lightly to relieve any pressure on the bearings at the end of the
journal.

M-8-
Steering
Knuckle
Service

The
steering knuckle pins pivot on tapered roller
bearings. Replacement of
these
bearings requires

removal
of the hub and brake drum assembly,
wheel bearings, axle shaft, spindle, steering tie rod,

and
steering knuckle. Disassemble the steering
knuckle
as follows:
Remove the
eight
screws which hold the oil seal

retainer
in place. Remove the four screws holding
the lower pivot pin bearing cap. Remove the four screws holding the upper bearing cap in place. Re­
move
the bearing cap. The steering knuckle can
now be removed from the axle. Wash all parts in cleaning solvent. Replace any damaged or worn

parts.
Inspect the bearing and races for scores,
cracks,
or chips. Should the bearing cups be damaged,
they
may be removed and installed with

Special
Driver
W-138, as shown in Fig. M-9.
M-9.
Reassemble
and
Bearing Preload

Reverse
the procedure of Par. M-8 to reassemble
the unit. When reinstalling the steering knuckle, sufficient shims must be installed under the top

bearing
cap to obtain correct preload on the bear­
ing.
Shims are available in
these
thicknesses: .003"
[0,076
mm.] .010"
[0,254
mm.] 005"
[0,127
mm.] .030"
[0,762
mm.]

Install
one each of the
above
shims at the top only.
Install
the bearing caps, lockwashers, and screws,

and
tighten securely.
Check
the preload on the bearings by hooking a

spring
scale, Tool C-690, in the
hole
in the knuckle

arm
for the tie rod socket.
Take
the scale reading when the knuckle has just started its
sweep.

The
kingpin bearing preload should be 12 to 16 lb. [5,43 a 7,24 kg.] with the oil seal removed. Remove

or
add shims to obtain a preload within
these
limits.
FIG.
M-9—SPINDLE
PIN
BEARING
CUP
DRIVER

1—Tool
W-138
FIG.
M-10—TURNING
ANGLE
STOP
SCREW

1—Stop
Screw
M-10.
Replacing Steering
Knuckle
Oil Seal
Remove the old steering knuckle oil seal by remov­ ing the
eight
screws which hold it in place.
Earlier

production vehicles are equipped with seals con­ sisting of two oil seal halves.
Later
production vehicles are equipped with oil seal assemblies con­
sisting of a split oil seal and backing ring assembly,

an
oil seal felt, and two seal retainer plate halves.

Examine
the spherical surface of the axle for scores or scratches which could damage the seal.
Smooth any roughness with emery cloth. Before installing the oil seal felt, make a diagonal
cut across the top side of the
felt
so that it may be
slipped over the axle.
Install
the oil seal assembly

in
the
sequence
given above, making sure the

backing
ring (of the oil seal and backing ring as­
sembly) is toward the wheel.

After
driving in wet, freezing weather swing the
front
wheels
from right to
left
to remove moisture

adhering
to the oil seal and the spherical surface of
the axle housing.
This
will
prevent freezing with

resulting
damage to the seals. Should the vehicle be
stored for any period of time, coat
these
surfaces

with
light grease to prevent rusting.

M-11.
AXLE
SHAFT
INSTALLATION

Refer
to Fig. M-2.

Installation
of the front right and
left
axle shaft
is the same and is given in the following
paragraphs.

a.
Clean
all parts of
dirt
and foreign matter.

b.
Enter
universal joint and axle shaft assembly

in
the axle housing, taking care not to knock out
the inner oil seal.
Enter
the splined end of the
axle shaft
into
the differential and push
into
place. 281

FRONT
AXLE

FIG.
M-l
1—FRONT
STEERING

KNUCKLE

(With
Spicer Universal Joint)
1—
Wheel
Hub Cap

2—
Driving
Flange Cap Screw

3—
Axle
Shaft Drive Flange Gasket 4—
Wheel
Bearing Cup
5—
Front
Wheel Spindle
6—
Brake
Drum
7—
Front
Brake
Cylinder

8—
Brake
Backing Plate

9—
Pivot
Pin Bearing Cap
10—
Pivot
Pin Bearing Cap Nut
11—
Pivot
Pin 12—
Pivot
Bearing Adjusting Shims

13—
Pivot
Pin Cone and Rollers
14—
Steering
Knuckle
Oil Seal 15—
Front
Axle Universal Joint
16—
Thrust
Washer
17—
Brake
Backing Plate Screw
18—
Brake
Shoe and
Lining

19—
Hub
Oil Seal
20—
Wheel
Hub Bolt Nut
21—
Wheel
Bearing Cone and Rollers 22—
Wheel
Bearing Washer

23—
Wheel
Bearing Retaining Nut
24—
Wheel
Adjusting Nut
Lock
Washer
25—
Wheel
Bearing Retaining Nut
26—
Snap
Ring

c.
Install
the wheel bearing spindle and bushing.
d.
Install
brake backing plate.
e.
Grease and assemble wheel bearings and oil

seal.
Install
the wheel hub and drum on the wheel
bearing
spindle.
Install
the wheel bearing washer
and
adjusting nut. Tighten nut with
Wrench
W-144
as shown in
Fig.
M-5, until there is a slight drag on the bearings when the hub is turned.
Then
back off approximately one-sixth of a
turn.
Install
lock

washer
and nut, tightening nut
into
place, and then bend lip of lock washer over on the locknut.
f.
Install
drive
flange
and gasket on hub and attach
with
six cap screws and lock washers.
Install
snap

ring
on outer end of axle shaft.

g.
Install
hub cap.
h.
Install
the wheel, lug nuts, and wheel disc.
i.
If
tube
was installed with axle assembly on
vehicle, check front wheel alignment (Section O),
bleed brakes (Section P), and lubricate front axle

universal
joints (Section B).

M-12.
FRONT
AXLE
INSTALLATION

To
install the front axle, reverse the procedures described in
Par.
M-4 and then perform the follow­
ing operations:

a.
Torque spring clip plate (U-bolt) nuts securing the axle to the front springs, (see Par. M-4).

b.
Adjust and bleed the brakes (see Section P).

c.
Check
axle lubricant level and
fill
as necessary, (see Section B).

d.
Check
front end wheel alignment (see Section
O).
e.
Check
wheel turning angle. Refer to Par. M-14.
M-13.
Steering
Tie Rod and
Bell Crank

These
parts of the front axle are covered in Sec­
tion O.
M-14.
4-Wheel Drive
Turning
Angle

Adjustment
and service information regarding
turning
angles
is covered in Section O.

M-15.
2-WHEEL-DRIVE
FRONT
AXLE
The
front axle is of the reverse
Elliot
type. It is a
steel forging, heat treated for strength and ma­
chined
to
close
limits. The steering knuckles are
mounted on pins which pass through
openings
at each end of the
"I"
beam and are locked securely

in
position with tapered pins and nuts. The knuckles

ride
on
ball
thrust bearings for
ease
of steering. See
Figs.
M-12, M-13.

The
knuckles are connected by a tie rod which is
mounted on
ball
and socket connections. The tie

rod
is adjustable to secure correct
toe-in
of the front wheels. A steering connecting rod
connects

the
left
knuckle arm with the steering gear arm.

Standard
caster and camber of the front
wheels
are
built
into
the front axle. Wheel camber cannot
be changed however, caster can be adjusted by

placing
tapered shims or
wedges
between
the
springs and spring seats. For
complete
information

regarding
the steering
geometry
refer to the
Section O.

M-16.
Removal of Solid
Front
Axle

Note:
The procedure for removing the solid front
axle varies slightly, depending on whether the
springs are slung under or over the axle. These

variations
are
noted
in the following procedure.

a. -
Raise the front end of the vehicle and safely support the frame behind the springs.

b.
Remove the
wheels
by removing the wheel
discs and lug nuts.

c.
Disconnect the steering connecting rod at the
ball
and socket connection on the steering knuckle. 282

'Jeep'
UNIVERSAL
SERIES SERVICE
MANUAL

M
FIG.
M-12—FRONT
AXLE—EARLY
MODEL
DJ-5, DJ-6
1— Outer Bearing Cone and Rollers
2— Outer Bearing Race
3—
Inner
Bearing Cone and Rollers
4—
Inner
Bearing Race 5— -Wheel Brake Cylinder
6— Bleeder Screw 7— Upper Expansion Plug
8— Steering Knuckle Pin
9— Steering Knuckle Bushing
10—
Lubrication
Fitting Opening
11—
Front
Axle I-Beam 12— Steering Knuckle Pin Bearing 13—
Brake
Backing Plate
14—
Brake
Drum 15—
Brake
Shoe

16— Wheel Hub Bolt
17— Spindle
18—
Front
Wheel Hub
19— Spindle Nut
d. Disconnect the shock absorbers at the axle

mounting
pads.
e. Disconnect the brake hydraulic
hoses
at the
connections
between
front brake
lines
and
flexible
hoses.

f. Support the axle assembly on a jack, ready for removal. g. On
vehicles
with the springs slung over the axle,

remove
the
nuts
from the spring to axle U-bolt clips,

remove
the spring clip
plates,
and slide the axle as­

sembly
from underneath the vehicle.

On
vehicles
with the springs slung under the axle,
remove
the
nuts
from the spring clips and
remove

the spring clip
plates.
Then
disconnect
the spring

FIG.
M-13—FRONT
AXLE, LATE
MODEL
DJ-5, DJ-6
1— Steering Knuckle
2— Steering Knuckle Bushing
3—
Key

4— Steering Arm
5—
Lock
Spring
6—
Oil
Seal Retainer 7—
Oil
Seal
8—
Tapered
Pin
9— Dust Cover
10— Nut
11— Cotter Pin
12— Tie
Rod
13— Axle Tube 14— Plug
15— Steering Knuckle Pin
16—
Shim

17—
Thrust
Bearing
18— Bolt
19— Nut 20— Nut
21— Cotter Pin 11660
283

M

FRONT
AXLE
from
the spring shackles by removing the lower

spring
shackle bolts.
Lower
the front springs to the floor and slide the axle assembly from underneath the vehicle.

M-17. STEERING KNUCKLE SERVICE
The
following procedures are given for steering

knuckle
service when the axle is installed on the vehicle.
With
the axle removed, eliminate the ap­

propriate
steps.

M-18.
Steering
Knuckle
Pin Replacement

Refer
to
Figs.
M-12, M-13.

The
only parts of the front axle, subjected to weir

which
may require replacement are the steering

knuckle
pins and bushings. To accomplish this re­ placement follow the procedure outlined below.

a.
Jack
up the front of the vehicle to free the
wheels.
Install
axle stands under the front axle for safety.

b.
Remove the hub cap and dust cap.

c.
Remove the wheel retaining cotter pin, nut,
and
washer.

d.
Remove the wheel with hub, bearings, and oil

retainer.

e. Disconnect the hydraulic brake tube.
f. Remove the brake backing plate. g. Remove the tapered steering knuckle pin lock.

h.
Remove the upper steering knuckle expansion
plug on early models, or the lock spring on late models.

i.
Drive the Steering
Kunckle
Pin and lower ex­
pansion plug out through the bottom. When the
spindle is disassembled, do not
lose
the spacing

shim
between
the upper face of the axle and the spindle.

j.
Remove the thrust bearing and bushings,
k.
Assemble in reverse order. Be sure the oil
holes

in
the bushings are aligned with the lubrication fittings.
Ream
the bushings for running clearance

with
the steering knuckle pin.
Check
the thrust
bearing
to be sure it is not worn or damaged. When
installing
the steering knuckle pin, align the notch
for the tapered retaining pin with the pin hole.

When
assembling the knuckle, guard against lost motion
between
the axle and inner face of the

knuckle.
Adjustment is made by selective fitting
of the spacing shim
between
the upper face of the
axle and the inner face of the knuckle. Shims are

available
in the following thicknesses:
.011" [0,279 mm.] .035* [0,889 mm.] .033* [0,838 mm.]
Do not overlook bleeding the brakes after the axle
end has been reassembled. 284

FIG.
N-3—SEMIFLOATING REAR
AXLE
—
TAPERED SHAFT

1— Differential Bearing Cup
2— Differential Bearing Cone and Rollers
3— Shims
4— Differential Case 5—
Ring
Gear and Pinion
6— Pinion Inner Bearing Cone and Rollers
7— Pinion Inner Bearing Cup
8— Pinion Shims
9— Axle
Housing

10— Pinion Outer Bearing Cup
11— Pinion Outer Bearing Cone and Rollers 12—
Oil
Slinger
13— Gasket
14— Pinion Oil Seal
15— Dust Shield
16— Yoke
17—
Flat
Washer
18— Pinion Nut 19— Wheel Bearing Shims
20— Bearing Cup
21— Bearing Cone and Rollers
22—
Oil
Seal 23—
Thrust
Washer
24— Differential Pinion Gears
25—
Thrust
Washer
26— Axle Shaft 27—
Thrust
Block
28— Gasket 29—
—Housing
Cover
30— —Screw and Lock Washer
31—
Filler
Plug 32— Differential Shaft
33—
Lock
Pin
34—
Ring
Gear Screw

c.
Remove the axle shaft cotter pin, castle nut,

and
flat washer.

d.
Back
off on brake adjustment eccentric.
FIG.
N-4—WHEEL
HUB
PULLER
e. Use Wheel Hub Puller C-319 to remove the
wheel hub as shown in Fig. N-4.
f. Remove the screws attaching the brake dust
protector, grease and bearing retainers, brake as­
sembly, and shim to the housing.
g. Remove the hydraulic line from the brake as­ sembly.

h.
Remove the dust shield and oil seal.

i.
Using Tool C-637 and Adapter Tool SP-342,
remove the axle shaft bearing cone, roller, and cup
as shown in Fig. N-5.

j.
Should an axle shaft be broken, the inner end

can
usually be drawn out of the housing with a

wire
loop
after the outer oil seal is removed. How­ ever, if the broken end is
less
than 8" [20,3 cm.]
long it
will
usually be necessary to remove the

differential
assembly.

To
remove the bearing from an axle shaft, use

Combination
Bearing Puller W-104-B shown in
Fig.
N-6.
Installation
is the reverse of removal.

Note:
Place the hub and drum on the axle shaft
taper and then insert the axle shaft key in the
keyway.
Never install the key in the keyway before

placing
the hub and drum assembly on the axle
shaft
Further,
be sure that the axle shaft nut is torqued to a minimum of 150 lb-ft. [21 kg-m.j. 288

'Jeep'
UNIVERSAL
SERIES SERVICE
MANUAL

N

11465
FIG.
N-S—REMOVING
TAPERED
AXLE
SHAFT
1—Cone and Roller 2—Axle 3—Tool C-637

Check
the shaft oil seal
before
installing the rear
axle. If replacement is necessary, use Axle Shaft
Oil
Seal Driver W-186, Fig. N-l7.
Before installing the axle shaft nut
cotter
pin, ad­
just the wheel bearings as outlined in Section Q.
FIG.
N-6—REMOVING
AXLE
SHAFT BEARING —
TAPERED SHAFT
N-3.
Rear
Axle Shaft Removal (Sercii-Float-Flanged Shaft)
a.
Jack
up vehicle and
remove
wheels.
b. Remove brake drum.
c. Remove axle shaft
flange
cup plug by piercing
the center with a sharp
tool
and prying it out.
d. Using
access
hole
in axle shaft
flange
remove
@ ® (30) (29)

FIG.
N-7—SEMI-FLOAT REAR
AXLE
ASSEMBLY — FLANGED SHAFT
1— Differential Bearing Cup
2— Differential Bearing
3— Shims
4— Differential 5—
Ring
Gear
and Pinion 6— -Pinion Inner Bearing
7— Pinion Inner Bearing Cup
8— Pinion Shims
9— Axle Housing
10— Breather
11— Pinion Outer Bearing Cup
12— Pinion Outer Bearing 13—
Oil
Slinger
14— Pinion Oil Seal
15— Dust Shield
16—
Yoke

17—
Flat
Washer
18— Pinion Nut
19— Axle Housing Oil Seal
20— Axle Shaft Retainer Ring
21— Axle Shaft Bearing
22— Axle Shaft Oil Seal
23— Axle Shaft Retainer Plate
24— Axle Shaft Cup Plug 25— Axle Shaft
26—
Thrust
Washer
27— Differential Pinion Gears
28—
Thrust
Washer 29— Gasket
30— Housing Cover 31— Screw and Lockwasher
32—
Filler
Plug 33—
Lock
Pin 34— Differential Shaft
35—
Ring
Gear
Screw 289

N

REAR
AXLE

FIG.
N-l3—NOTCHING
BEARING
RETAINING
RING
c.
Attach puller
tool
W-343 to axle shaft flanged
end using the wheel lug nuts. Position puller
bolts

against dimples of holding ring and alternately tighten until bearing is pressed from shaft, as shown

in
Fig. N-14. 14152

FIG.
N-14—REMOVING
AXLE
SHAFT
BEARING
1—
Bolt

2—
Flange
Adapter

3—
Dimple
in Holding
Ring

4 Holding
Ring

5—
Adapter
Plates N-8.
Rear
Axle
Shaft and Bearing Installation

(Semi-Float-Flanged
Shaft)

a.
Inspect the axle shaft oil seal
journal
for
scratches and polish with fine crocus cloth if
necessary.

b.
Install
retainer plate on the axle shaft

c.
Apply grease to the new oil seal cavity
between

the seal lips and carefully slide seal, on the axle shaft seal seat. The outer face of the seal must be

toward
the axle flange.

d.
Pack
the new bearing
full
of grease
prior
to

installation,
using the proper lubricant.
e.
Install
the unit bearing on the axle shaft making
certain
the cup rib ring is facing the axle flange.
f.
Install
the new bearing retainer ring on the axle shaft.
g. Using puller
tool
W-343, press the new axle shaft bearing and retainer ring on the axle shaft
simultaneously. Tighten puller
bolts
alternately

until
the bearing and retainer ring are properly
seated
against the shaft shoulder.

Refer
to Fig. N-15 and N-16. 14154

FIG.
N-15—INSTALLING
AXLE
SHAFT
BEARING

1—
Holding
Ring

2—
Adapter

3—
Flange
Adapter
4—
Bolt

Note:
Make certain the old bearing cup has
been

removed from the axle housing
before
the axle
shaft and new unit bearing is installed
into
the
axle housing.

h.
Install
axle shaft through the backing plate
using care not to damage the axle housing
tube
inner
oil seal.

i.
Apply a thin coating of lubricant to the
outside

diameter of the bearing cup
prior
to installing in
the bearing bore.

j.
Tap end of flanged shaft lightly with a rawhide
mallet to position the axle shaft bearing in the
housing bearing bore.

k.
Attach the axle shaft retainer and brake back­
ing plate to the axle
tube
flange. Secure with nuts

and
lockwashers. Torque 25 to 35 lb. ft
[3,4-4,8

kg-m.].

I.
Install
a new cup plug
into
the axle shaft
flange

hole.

m.
Install
the brake
drum,
and
rear
wheel as­
sembly. 292