1969 FORD MUSTANG Volume One Chassis

05-01-02
Drive Shaft

05-01-02

NUT-33796-S

DUST SEAL 1

4859
r SNAP RING-

• .BEARING'

SLIP YOKE - 4841
cardan has a center yoke (or cage), a

centering socket yoke, and a stud

yoke which is welded to each end of

the tube assembly. The splines in the

yoke and on the transmission output

shaft permit the drive shaft to move

forward and rearward as the axle

moves up and down.

All drive shafts are balanced. If the

vehicle is to be undercoated, cover the

drive shaft and universal joints to pre-

vent application of the undercoating

material.

C 2059-A

FIG.
1—Drive
Shaft and Universal Joints Disassembled

CENTERING

SOCKET YOKE-

4782

UNIVERSAL

SPIDE JOINT KIT-4635

li

.PAI .70n CENTERING

SEAL-4790 S0CKET YOKE-4782

DRIVE SHAFT- CENTER YOKE-

4602 4778

C1594-B

FIG. 2—Drive Shaft and Universal Joints Disassembled—Lincoln Continentalprocarmanuals.com

05-01-03
Drive Shaft

05-01-03

DUST SEAL-4859

BALL SOCKET-4A031

UNIVERSAL

JOINT KIT-4635

WASHER

BALL SEAT i \ SPRING

BEARING \\ RETAINER

SEAL

0 \ X \
CENTER

\ \ RETAINER \ YOKE-47R4

SPRING \

BALL SOCKET-4A031

SLIP YOKE-4841

C1770-A

FIG.
3—Drive Shaft and Universal Joints Disassembled —Thunderbird, Continental Mark

REMOVAL AND INSTALLATION

REMOVAL

1.
To maintain drive line balance,

mark the relationship of the rear drive

shaft yoke and the drive pinion flange

of the axle (if the yellow alignment

marks are not visible) with the shaft

so that they may be installed in their

original positions.

2.
Disconnect the rear U-joint or

rear double cardan joint from the

companion flange. Wrap tape around

the loose bearing caps to prevent

them from falling off the spider. Pull

the drive shaft toward the rear of the

vehicle until the slip yoke clears the

transmission extension housing and

the seal. On Lincoln Continental

models, remove the three roller bear-

ing assemblies off the spline teeth in-

side the slip yoke (Fig. 3). Install the

appropriate tool in the extension

housing to prevent lubricant leakage.

INSTALLATION

1.
If either the rubber seal on the

output shaft or the seal in the end of

the transmission extension housing is
damaged in any manner, replace the

seal or seals as required. Also, if the

lugs on the axle pinion flange are

shaved or distorted so that the bear-

ings slide, replace the flange.

2.
On Lincoln Continental models,

install the bearing assemblies over the

spline teeth in the slip yoke. Lubricate

the yoke spline with B8A-19589-A lu-

bricant. This spline is sealed so that

the transmission fluid does not

"wash" away the spline lubricant

(Figs.
4 and 5). Remove the tool from
the extension housing. Install the yoke

on the transmission output shaft. Do

not allow the yoke assembly to bot-

tom on the output shaft with excessive

force.

Install the drive shaft so that the

index marks or the yellow mark (if

visible) on the yoke (light side) is in

line with the yellow mark on the com-

panion flange. This prevents vibration

which occurs when the balance of the

shaft and balance of the axle pinion

flange become additive instead of neu-

01L SEAL (AUTOMATIC TRANSMISSION ONLY)

YOKE

SNAP RING (WRAP TYPE)

. 4—Output Shaft Spline Seal — All except Continental

Mark III and Thunderbird
E U73-Cprocarmanuals.com

05-01-04
Drive Shaft

05-01-04

tralizing.
If a
vibration exists,
the

drive shaft should
be
disconnected

from
the
axle, rotated 180 degrees
and

reinstalled.

3.
Install
the
U-blots
and
nuts that

attach
the
U-joint
to the
drive pinion

flange. Torque
the
U-bolt nuts
to

specification.
On
vehicles equipped

with
a
double cardan joint, install
the

rear joint-to-drive pinion flange
at-

taching bolts. Torque
the
bolts
to spe-

cification.

YOKE

C1773-A

FIG. 5—Output Shaft Spline Seal
—

Continental Mark
III
and Thunderbird

IN-VEHICLE REPAIR

USE SUPPORT STAND

AS
A
STEADY REST

E 1685-A

FIG. 6—Marking Driveshaft
CHALK MARK

CLAMPS 18d*FR0M CHALK MARK
*« >

E 1686-A

FIG. 7—Installing Whittek Clamps
E
1687-
A

. 8—Rotating Whittek Clamps

DRIVESHAFT BALANCING

(SINGLE UNIVERSAL JOINT)

If rotating
the
driveshaft
180 de-

grees does
not
eliminate vibration,
the

driveshaft
may be
balanced using
the

following procedure:

1.
Place
the
vehicle
on a
twin post

hoist
so
that
the
rear
of the
vehicle
is

supported
on the
rear axle housing

with
the
wheels free
to
rotate.

2.
With
the
driveshaft rotating
at a

speedometer speed
of
40-50
mph,
carefully bring
a
crayon
or
colored

pencil
up
until
it
just barely contacts

the rearward
end of
driveshaft
(Fig.

6).
The
mark made
by the
crayon
or

pencil will indicate
the
heavy side
of

the shaft. Care should
be
exercised

when working near
the
balance

weights
to
prevent injury
to the
hands.

3.
Install
two
Whittek type hose

clamps
on the
driveshaft
so
that
the

heads
are
located
180
degrees from

the crayon marking
(Fig. 7).
Tighten

the clamps.
4.
Run the
vehicle
up to
65-70
mph

speedometer speed.
If no
vibration
is

felt, lower
the
vehicle
and
road test.
If

unbalance still exists rotate
the
clamp

heads approximately
45
degrees away

from each other
and
test
for
vibration

(Fig.
8).

5.
Continue
to
rotate
the
clamp

heads apart
in
smaller amounts until

vibration
is
eliminated.
To
prevent

overheating,
do not run the
vehicle

on
the
hoist
for an
extended period.

6. Road test
the
vehicle.procarmanuals.com

05-01-05
Drive Shaft
05-01-05

MAJOR REPAIR OPERATIONS

DISASSEMBLY (SINGLE

UNIVERSAL JOINT —

FORD DESIGN)

1.
Place the drive shaft in a vise

being careful not to damage it.

2.
Remove the snap rings that re-

tain the bearings in the slip yoke and

in the drive shaft.

3.
Position the tool shown in Fig. 9

on the shaft and press the bearing out

of the slip yoke. If the bearing cannot

be pressed all the way out of the yoke,

remove it with vise grip or channel

lock pliers.

4.
Reposition the tool to press on

the spider to remove the bearing from

the opposite side of the yoke.

5.
Remove the yoke from the spi-

der.

6. Remove the bearings and spider

from the drive shaft in the same man-

ner.

C 1781-A

FIG. 9—Removing Universal Joint

Bearing
7.
Clean all foreign matter from the

yoke area at each end of the drive

shaft.

ASSEMBLY (SINGLE

UNIVERSAL JOINT-

FORD DESIGN)

1.
Start a new bearing into the

yoke at the rear of the drive shaft.

2.
Position the spider in the rear

yoke and press the bearing 1/4 inch

below the surface (Fig. 10).

3.
Remove the tool and install a

new snap ring.

4.
Start a new bearing into the op-

posite side of the yoke.

5.
Install the tool and press on the

bearing until the opposite bearing con-

tacts the snap ring.

6. Remove the tool and install a

new snap ring. It may be necessary to

grind the surface of the snap ring to

CENTER YOKE
Adapter

C 2062-A

FIG. 11— Partially Pressing Bearing

from Center Yoke

Tool-CJ91B

C 1782-A

FIG. 10—Installing Universal Joint

Bearing
permit easier entry.

7.
Reposition the drive shaft and

install the new spider and two new

bearings in the same manner as the

rear yoke.

8. Position the slip yoke on the spi-

der and install two new bearings,

nylon thrust bearings and snap rings.

9. Check the joint for freedom of

movement. If a bind has resulted from

misalignment during the foregoing

SPIDER

C206J-A

FIG. 12—Removing Bearing from

Center Yoke

BEARING CUP

SPIDER

C 2064-A

FIG. 13—Removing Bearing Cup

from Centering Yoke Socket

C 2065-A

FIG.
14
— Removing Center

Socket Yokeprocarmanuals.com

05-01-06

Drive Shaft

05-01-06

procedures, a sharp rap on the yokes

with a brass hammer will seat the

bearings needles and usually provide

freedom of movement. Care must be

taken to support the shaft end during

this operation, as well as preventing

blows to the bearings themselves. Do

not install the drive shaft unless the

universal joints are free of bind.

DISASSEMBLY (DOUBLE

CARDAN JOINT — LINCOLN

CONTINENTAL — DANA DESIGN)

1.
Mark the position of the spiders,

the center yoke, and the centering

socket yoke as related to the stud

yoke which is welded to the front of

the drive shaft tube. The spiders must

be assembled with the bosses in their

original position to provide proper

clearance.

2.
Remove the snap rings that se-

cure the bearings in the front of the

center yoke.

3.
Position the tool as shown in

Fig. 11. Thread the tool clockwise

until the bearing protrudes approxi-

mately 3/8 inch out of the yoke.

4.
Remove the drive shaft from the

vise.

5.
Tighten the bearing in the vise

and drive on the center yoke as shown

in Fig. 12 to free it from the bearing.

CENTER

YOKE

C 2066-A

FIG. 15—Removing Bearing from

Rear of Center Yoke

SLINGER RING

CENTER YOKE
6. Lift the two bearings (Fig. 13)

from the spider at this time.

7.
Reposition the tool on the yoke

and move the remaining bearing in the

opposite direction so that it protrudes

approximately 3/8 inch out of the

yoke.

8. Grip the bearing in a vise. Drive

on the center yoke to free it from the

bearing (Fig. 12).

9. Remove the spider from the cen-

ter yoke.

10.
Pull the centering socket yoke

off the center stud (Fig. 14). Remove

the rubber seal from the centering ball

stud.

11.
Remove the snap rings from the

center yoke and from the drive shaft

yoke.

12.
Position the tool on the drive

shaft yoke (Fig. 15) and press the

bearing outward until the inside of the

center yoke almost contacts the sling-

er ring at the front of the drive shaft

yoke. Pressing beyond this point can

distort the slinger ring. The arrow in

Fig. 16 illustrates the interference

point.

13.
Clamp the exposed end of the

bearing in a vise and drive on the cen-

ter yoke with a soft-faced hammer to

free it from the bearing.

14.
Reposition the tool and press

on the spider to remove the opposite

bearing.

Tool-CJ91B

C1772-A

FIG. 17—Partially Pressing Bearing

From Center Yoke

C 2067-A

FIG. 16—Center Yoke Interference

Point
C1771-A

FIG. 18—Removing Bearing From

Center Yoke
15.
Remove the center yoke from

the spider.

16.
Remove the spider from the

drive shaft yoke in the same manner.

17.
Clean all serviceable parts in

cleaning solvent. If using a repair kit,

install all of the parts supplied in the

kit. If the drive shaft is damaged, re-

place the complete shaft to be assured

of a balanced assembly.

ASSEMBLY (DOUBLE

CARDON JOINT —

LINCOLN CONTINENTAL —

DANA DESIGN)

1.
To assemble the double cardan

joints,
position the spider in the drive

shaft yoke. Make sure the spider boss-

es (or lubrication plugs on kits) will be

in the same position as originally in-

stalled. Press in the bearing cups. In-

stall the snap rings.

2.
Position the center yoke over the

spider ends and press in the bearing

cups.
Install the snap rings.

3.
Install a new seal on the cen-

tering ball stud. Position the centering

socket yoke on the stud.

4.
Place the front spider in the cen-

ter yoke. Make sure the spider bosses

(or lubrication plugs on kits) are prop-

erly positioned. Press in the bearing

cups and install the snap rings.

5.
Apply pressure on the centering

socket yoke and install the remaining

bearing cup.

6. On kits, remove the plug from

each spider and lubricate the universal

joints.
Reinstall the plug in each spi-

der.

DISASSEMBLY (DOUBLE

CARDAN JOINT — CONTINENTAL

MARK III, THUNDERBORD —

SAGINAW DESIGN)

1.
Working at the rear axle end of

the shaft, mark the position of the spi-

ders,
the center yoke, and the cen-

tering socket yoke as related to the

companion flange. The spiders must

be assembled with the bosses in their

original position to provide proper

clearance.

2.
Position tool CJ91B as shown in

Fig. 17. Thread the tool clockwise

until the injected nylon moulding

snaps and the bearing protrudes ap-

proximately 3/8 inch out of the yoke.

3.
Remove the driveshaft from the

vise.

4.
Tighten the bearing in the vise

and tap on the weld yoke to free the

bearing from the center yoke (Fig.

18).
Do not tap on the driveshaft tube.procarmanuals.com

05-01-07
Drive Shaft

05-01-07

5.
Reposition tool CJ91B on the

yoke and force the opposite bearing

outward and remove it.

6. Position the tool on one of the

remaining bearings and force it out-

ward approximately 3/8 inch.

7.
Grip the bearing in the vise and

tap on the weld yoke to free the bear-

ing from the center yoke. Do not tap

on the driveshaft tube.

8. Reposition the tool on the yoke

to press out the remaining bearing.

9. Remove the spider from the cen-

ter yoke.

10.
Remove the bearings from the

driveshaft yoke as outlined above and

remove the spider from the yoke.

11.
Insert a screwdriver into the

centering ball socket located in the

companion flange and pry out the

rubber seal. Remove the retainer, three
piece ball seat, washer and spring

from the ball socket.

12.
Inspect the centering ball socket

assembly for worn or damaged parts.

If any damage is evident replace the

entire assembly.

13.
Repeat Steps 1 through 12 to

disassemble the transmission end of

the driveshaft.

ASSEMBLY (DOUBLE

CARDAN JOINT — CONTINENTAL

MARK III, THUNDERBIRD —

SAGINAW DESIGN)

1.
Working at the rear axle end of

the driveshaft, insert the spring, wash-

er, three piece ball seat and retainer

into the ball socket.

2.
Using a suitable tool, install the

centering ball socket seal.
3.
Position the spider in the drive-

shaft yoke. Make sure the spider

bosses are in the same position as

originally installed. Press in the bear-

ing cups with tool CJ91B. Install the

internal snap rings provided in the re-

pair kit.

4.
Position the center yoke over the

spider ends and press in the bearing

cups.
Install the snap rings.

5.
Install the spider in the compan-

ion flange yoke. Make sure the spider

bosses are. in the same position as

originally installed. Press on the bear-

ing cups and install the snap rings.

6. Position the center yoke over the

spider ends and press on the bearing

cups.
Install the snap rings.

7.
Repeat steps 1 through 6 to as-

semble the transmission end of the

driveshaft.procarmanuals.com

05-02-01
General Clutch Service

05-02-01

PART
5-2
General Clutch Service

COMPONENT INDEX
MODEL APPLICATION

3

a>
1
o>

il

•U
i
!-

II

CLUTCH DISC

Cleaning and Inspection

02-04
02-04
02-04

02-04
02-04
02-04

02-04
02-04
N/A
N/A

N/A

CHECKING FLYWHEEL HOUSING

ALIGNMENT

02-01
02-01
02-01

02-01
02-01
02-01

02-01
02-01
N/A
N/A

N/A

CORRECTING FLYWHEEL HOUSING

ALIGNMENT

02-03
02-03
02-03

02-03

02-03
02-03

02-03

02-03
N/A
N/A

N/A

PILOT BUSHING

Cleaning and Inspection

02-04
02-04
02-04
02-04

02-04
02-04

02-04

02-04
N/A
N/A

N/A

PRESSURE PLATE AND COVER

Cleaning and Inspection

02-04
02-04
02-04
02-04

02-04
02-04

02-04
02-04
N/A

N/A

N/A

RELEASE BEARING

Cleaning and Inspection

02-04
02-04

02-04
02-04
02-04
02-04

02-04
02-04
N/A

N/A

N/A

A page number indicates that the item is for the vehicle listed at the head of the column.

N/A indicates that the item is not applicable to the vehicle listed.

l
FLYWHEEL HOUSING ALIGNMENT

Alignment of the flywheel housing

bore and rear face with the engine

should be checked as a possible cause

of any of the following troubles- ex-

cessive transmission gear wear, ..ans-

mission jumping out of gear, especial-

ly third gear, drive line vibration, ex-

cessive pilot bushing wear, noisy re-

lease bearing, or excessive clutch spin

time.

INSPECTION

1. With the clutch release bearing

removed, install the indicator pilot

tool shown in Fig. 1.

2.
Clean the faces of the flywheel

housing bolt bosses, and remove all

burrs, nicks, and paint from the

mounting face of the housing.

3.
Install the dial indicator on the

pilot and adjust the holder so the but-

ton will contact a circumference just

inside of the transmission mounting

holes.

4.
Push the flywheel forward to re-

move crankshaft end play. Set the dial

indicator face to read zero.

5.
Remove the spark plugs to alle-

viate compression.

6. Pull the engine crankshaft

through one revolution. The crank-

shaft must be held in the forward po-

sition while rotating it.

7. Note the indicator reading and

mark the maximum point of runout

on the face of the housing (Fig. 1).
8. Position the dial indicator to

check bore alignment (Fig. 1). The

bore must be clean and free of burrs,

nicks and paint.

9. Pull the crankshaft through one

revolution. Note the indicator reading

and mark the maximum point of run-

out on the face of the housing as

shown in Fig. 1.

10.
Remove the dial indicator from

the crankshaft and the housing.

11.
Select the Dia-L-lgner pilot

(Fig. 2) which will fit snugly in the

bore of the flywheel housing.

12.
Press the pilot into place on the

locator on the back of the dial.
13.
Position the Dia-L-lgner on the

face of the housing (Fig. 3) with the

pilot in the bore.

14.
Rotate the face runout arrow to

the positive face runout mark on the

housing.

15.
Without moving the face runout

arrow, rotate arrow A until it is at the

negative bore reading.

16.
Slide arrow A to register the

amount of bore runout on the .010-

line of the white scale. Use the

scale No. to coincide with the pilot

being used.

17.
Rotate arrow B until it points

CHECKING
FACE
RUN OUT

CHECKING
BORE
RUN OUT

C
1783-
A

FIG.
1—Flywheel
Housing Alignment Checkprocarmanuals.com

05-02-02
General Clutch Service
05-02-02procarmanuals.com