1969 FORD MUSTANG service indicator

04-01-06
General Axle Service

04-01-06

FLANGE BEARING

CUP RUNOUT

0.000

0.001

0.002

0.003

0.004

0.005

0.006

0.007

0.008
DRIVE SHAFT UNIVERSAL CROSS-SHAFT RUNOUT-INCH

0.000

0.000

0.001

0.002

0.003

0.004

0.005

0.006

0.007

0.008
0.001

0.001

0.0013

0.0022

0.0032

0.0042

0.0051

0.0061

0.0071

0.0081
0.002

0.002

0.0022

0.0027

0.0036

0.0045

0.0053

0.0062

0.0073

0.0082
0.003

0.003

0.0032

0.0037

0.0042

0.005

0.0058

0.0068

0.0075

0.0087
0.004

0.004

0.0042

0.0045

0.005

0.0057

0.0063

0.0072

0.0081

0.009
0.005

0.005

0.0051

0.0053

0.0058

0.0064

0.0071

0.0078

0.0087

0.0094
0.006

0.006

0.0061

0.0062

0.0067

0.0072

0.0078

0.0085

0.0093

0.010
0.007

0.007

0.0071

0.0072

0.0077

0.0081

0.0087

0.0092

0.0099

0.0104
0.008

0.008

0.0081

0.0082

0.0085

0.009

0.0094

0.010

0.0103

0.011

The total (combined) companion flange runout
is
located
in the
square where
the
columns containing
the
flange bearing cup runout

and universal cross shaft runout readings intersect.

FIG. 9—Companion Flange Combined Runout Chart

slightly moving the cross-shaft fore

and aft, then rotate the companion

flange from side-to-side.

8. With the indicator at zero, care-

fully retract the dial stem and rotate

the flange 180 degrees. Rotate the

cross-shaft 180 degrees on the flange

bearing cups to position the exposed

journal under the dial indicator adapt-

er. Rock the cross-shaft fore and aft

and the companion flange side-to-side

to establish the point at which the in-

dicator hand reverses direction. This

will determine the driveshaft universal

cross-shaft run-out. Record this read-

ing (Fig. 8).

9. Repeat steps 5 through 8 at least

three times and average the indicator

readings obtained (Fig. 7).

10.
To determine the total (com-

bined) companion flange runout, it

will be necessary to use the combined

runout chart (Fig. 9). Position a

straight edge at the amount of flange

bearing cup runout indicated on the

left hand column of the chart. Posi-

tion another straight edge vertically at

the amount of driveshaft universal

cross-shaft runout indicated on the top

of the chart. The point at which the

straight edges cross the chart indicates

the combined rear axle flange runout.

For example:

With an indicated 0.003 inch flange

bearing cup runout and an indicated

0.004 inch universal cross-shaft runout

(Fig. 9), the combined companion

flange runout will be 0.005 inch as in-

dicated in the square on the chart

(Fig. 9).

11.
If the reading obtained in Step

10 exceeds specifications, reposition

the companion flange 180 degrees on

the pinion shaft and repeat steps 1

through 10.

12.
If the repeat readings still ex-

ceed specifications, re-position the

flange an additional 90 degrees on the
pinion shaft and check the runout

(Steps 4 through 10).

13.
If the runout is still excessive,

replace the companion flange and

check the runout. If necessary, rotate

the new flange on the pinion shaft

until an acceptable runout is obtained.

If excessive runout is still evident

after replacement of the companion

flange, it will be necessary to replace

the ring and pinion gear, and repeat

the above checks until runout is within

specifications.

14.
Install the driveshaft assembly

(Group 5). Make sure the universal

joint bearing cups are properly posi-

tioned between the companion flange

lugs.

15.
Lower the vehicle. Road test

the vehicle. If drive shaft vibrations

are evident during the road test, re-

move the driveshaft from the compan-

ion flange and rotate it 180 degrees.

Road test the vehicle again.
THUNDERBIRD AND

CONTINENTAL MARK III

1.
Raise the vehicle on a hoist that

supports the rear axle (twin-post

hoist).

2.
Remove the driveshaft assembly

(Group 5).

3.
Check the companion flange for

damage.

4.
To check radial runout, set up

dial indicator as shown in Fig. 10.

5.
Rotate the companion flange

with the dial indicator in place. If the

runout exceeds specifications, remove

the flange and reinstall it 180 degrees

from original position. Follow the

procedure in Part 4-2 for companion

flange installation.

6. If the runout is still excessive, re-

move and reinstall the flange an addi-

tional 90 degrees and recheck runout.

7.
To check lateral (face) runout,

set up the dial indicator as shown in

Fig. 11. Repeat steps 5 and 6.

FLANGE
MOUNT HERE

Too/-4207-C

Too/-6565 USED WITH BRACKET FROM Tool-4201

FIG. 10—Checking Companion Flange Radial Runout—

Thunderbird and Continental Mark III
E1697-Aprocarmanuals.com

04-01-07
General Axle Service

04-01-07

Tool-4201-
C

Tool-6565 USED WITH BRACKET

FROM Too/^*207-C

FLANGE

E1743-A
procedure under Backlash and Differ-

ential Bearing Preload Adjustments.

If the tooth pattern indicates a change

in shim thickness, follow the proce-

dure under Pinion Location.

REMOVABLE CARRIER

TYPE AXLE

The shim location for the removable

carrier type axle is between the pinion

retainer and the carrier (Fig. 13).

When adjusting this type carrier re-

ducing shim thickness will move the

pinion toward the ring gear; increas-

ing shim thickness will move the pi-

nion away from the ring gear (Fig.

13).

FIG. 11—Checking Companion Flange Lateral Runout—

Thunderbird and Continental Mark III
INTEGRAL CARRIER

TYPE AXLE

8. If the runout is still excessive, re-

place the companion flange and check

the runout. If necessary, rotate the

new flange on the pinion shaft until an

acceptable runout is obtained.

If excessive runout is still evident

after replacement of the companion

flange, it will be necessary to replace

the ring and pinion gear, and repeat

the above checks until runout is within

specifications.

9. Install the driveshaft assembly

(Group 5).

PINION LOCATION

ADJUSTMENT

BACKLASH

ADJUSTMENT,

LEFT

ADJUSTING

NUT

E1476-A

FIG. 12—Pinion and Ring Gear

Tooth Contact Adjustment
—

Integral Carrier Type Axles
PINION AND RING GEAR

TOOTH CONTACT

ADJUSTMENT

Two separate adjustments affect pin-

ion and ring gear tooth contact.

They are pinion location and backlash

(Figs.
12 and 13).

Individual differences in matching

the differential housing and the gear

set require the use of shims to locate

the pinion for correct contact with the

ring gear.

When adjusting either type axle,

shim thickness should be increased or

reduced only as indicated by the tooth

pattern check described in the fore-

going Section 1.

If the tooth pattern check indicates

a change in backlash only, follow the

PINION

LOCATION

ADJUSTMENT

SHIMS

LEFT

ADJUSTING

NUT
RIGHT

ADJUSTING

BACKLASH NUT

ADJUSTMENT El 409-A

FIG. 13—Pinion and Ring Gear

Tooth Contact Adjustment—

Removable Carrier Axles
The shim location for the integral

carrier type axle, is between the pi-

nion gear and the pinion rear bearing

cone (Fig. 12). When adjusting this

type axle, increasing shim thickness

moves the pinion toward the ring

gear; reducing shim thickness moves

the pinion away from the ring gear

(Fig. 12).

BACKLASH AND DIFFERENTIAL

BEARING PRELOAD

ADJUSTMENTS (ALL AXLES)

On a Light-Duty (WER) Axle, it is

necessary to remove the rear axle

shafts prior to performing the adjust-

ment procedures. Refer to Rear Axle

Shaft Wheel Bearing and Oil Seal Re-

placement—Light-Duty (WER), Axle,

Part 4-4, Section 2.

To secure a more uniform control

of differential side bearing preload in

service repairs, a dial indicator set-up

such as shown in Fig. 12 is used.

In both types of axle (Fig. 11 and

12),
the ring gear is moved away from

or toward the pinion as described in

the following procedure.

1.
Remove the adjusting nut locks,

loosen the differential bearing cap

bolts,
then torque the bolts to 15 ft-lbs

on integral carrier type axle; 20 ft-lbs

on removable carrier type axles before

making adjustments.

2.
The left adjusting nut is on the

ring gear side of the carrier. The right

nut is on the pinion side. Loosen the

right nut until it is away from the cup.

Tighten the left nut until the ring gear

is just forced into the pinion with

0.000 backlash then rotate the pinion

several revolutions to be sure no bind-

ing is evident. (Recheck the right nutprocarmanuals.com

04-01-08
General Axle Service

04 01-08

Too/-T57L-4067-A

E 1595-A

FIG.
14
—Adjusting Side Bearing Preload—Typical

at this time to be sure that it is still

loose.) Tightening the left nut moves

the ring gear into the pinion to de-

crease backlash, and tightening the

right nut moves the ring gear away.

3.
Install a dial indicator as shown

in Fig. 14.

4.
Tighten the right nut until it first

contacts the bearing cup. Then pre-

load the bearings from 0.008-0.012

inch case spread. Rotate the pinion

gear several revolutions in each direc-

tion while the bearings are loaded, to

seat the bearings in their cups to be

sure no bind is evident. This step is

important.

5. Again loosen the right nut to re-

lease the pre-load. If there is any

backlash between the gears as shown

by the dial indicator,(Fig.l2 or Fig. 10

Part 4-4) tighten the left nut just en-

ough to remove this backlash. At this

time,
make sure that one of the slots

in the left nut is so located that the

lock can be installed without turning

the nut. Carefully, tighten the right

nut until it just contacts the cup.

6. Torque the differential cap bolts

to specification.

On integral carrier type axles, set a

preload of 0.008 to 0.012 inch case

spread for new bearings and 0.003 to

0.005 for the original bearings.

On removable carrier type axles,

the preload is 0.008 to 0.012 inch case

spread for new bearings and 0.005 to

0.008 for the original bearings. As

preload is applied from the right side,

the ring gear is forced away from the

pinion and usually results in the cor-

rect backlash.

7.
Measure the backlash on several

teeth around the ring gear. If the

measurements vary more than 0.003

inch (both integral and removable car-

rier) there is excessive runout in the
gears or their mountings, which must

be corrected to obtain a satisfactory

unit. If the backlash is out of specifi-

cation, loosen one adjusting nut and

tighten the oposite nut an equal a-

mount to move the ring gear away

from or toward the pinion. When

moving the adjusting nuts, the final

movement should always be made in a

tightening direction. For example, if

the left nut had to be loosened one

notch, loosen the nut two notches,

then tighten it one. This insures that

the nut is contacting the bearing cup,

and that the cup cannot shift after

being put in service. After all such ad-

justments, check to be sure that the

case spread remains as specified for

the new or original bearings used.

8. Again check the tooth contact

pattern. If the pattern is still incor-

rect, a change in pinion location (shim

thickness) is indicated.

PINION LOCATION

Removable Carrier Type Axle

1.
Remove the attaching bolts and

the pinion and bearing retainer assem-

bly from the carrier.

2.
Measure the original shim thick-

ness with a micrometer. Increase or

decrease the shim thickness as indicat-

ed by the tooth pattern check des-

cribed in Section 1.

3.
Replace the pinion retainer O-

ring (Fig. 39, Part 4-2). Coat the O-

ring with axle lubricant before install-

ing. Do not roll the O-ring into the

groove. Snap it into position.

4.
Being careful not to pinch the

O-ring, install the pinion and bearing

retainer assembly in the carrier with

the corrected shim pack.

Before installing the pinion and

bearing retainer assembly, determine

which type of gear set is being used.
The non-hunting and pantial non-

hunting types can be identified by the

paint timing marks on the gear teeth

(Fig. 51, Part 4-2). Part 4-5 can also

be referred to for identification.

If the gear set is of the non-hunting

or partial non-hunting type clean the

teeth on both the pinion and drive

gear so that the timing marks are vis-

ible.
Rotate the differential case and

ring gear assembly in the carrier until

the marked teeth on the ring gear are

opposite the pinion entry hole. Place

the assembly in the carrier so that the

marked tooth on the pinion indexes

between the marked teeth on the ring

gear (Fig. 51, Part 4-2).

In almost every case of improper

assembly (gear assembled out of time)

the noise level and probability of fai-

lure will be higher than they would be

with properly assembled gears.

When installing the hunting type

gear set (no timing marks), assemble

the pinion and retainer assembly into

the carrier without regard to the

matching on any particular gear teeth.

5.
Install the retainer-to-carrier

mounting bolts and torque to specifi-

cations.

6. Adjust the backlash between the

ring gear and pinion as outlined in the

foregoing procedures.

7.
Make a tooth pattern check. If

the pattern is still unsatisfactory, re-

peat this procedure changing the shim

thickness each time until a satisfactory

tooth pattern is obtained.

Integral Carrier Type Axle

1.
Remove the differential case and

the drive pinion from the carrier cast-

ing, and then remove the pinion bear-

ings as described under Removal of

Differential Case and Drive Pinion in

Section 4.

2.
Measure the original shim thick-

ness with a micrometer. Increase or

decrease the shim thickness as indicat-

ed by the tooth pattern check des-

cribed in the foregoing Section 1 and

shown in Fig. 4.

3.
Install the corrected shim pack

and the bearings on the pinion, and

then install the pinion and the differ-

ential case in the carrier casting as

outlined under Installation of Drive

Pinion and Differential Case in Sec-

tion 4 of Part 4-3.

4.
Adjust the backlash between the

ring gear and pinion as outlined in the

foregoing procedure.

5.
Make a tooth pattern check. If

the pattern is still unsatisfactory, re-

peat this procedure changing the shim

thickness each time until a satisfactory

tooth pattern is obtained.procarmanuals.com

04-01-09
General Axle Service

04-01-09

CLEANING AND INSPECTION

INSPECTION BEFORE

DISASSEMBLY OF CARRIER

(ALL AXLES)

The differential case or carrier

should be inspected before any parts

are removed from it. These inspec-

tions can help to find the cause of the

trouble and to determine the correc-

tions needed.

Mount the carrier in the holding

fixture shown in Fig. 15. Wipe the lu-

bricant from the internal working

parts,
and visually inspect the parts

for wear or damage.

Tool-T57L-500-A

FIG. 15
— Bench
Fixture for

Carrier Overhaul—Typical

Rotate the gears to see if there is

any roughness which would indicate

damaged bearings or chipped gears.

Check the gear teeth for scoring or

signs of abnormal wear.

Set up a dial indicator (Fig. 16) and

check the backlash at several points

around the ring gear. Backlash should

be within specifications.
If no obvious defect is noted, check

the gear tooth contact.

To check the gear tooth contact,

paint the gear teeth with the special

compound furnished with each service

ring gear and pinion. A mixture that

is too wet will run and smear. Too dry

a mixture cannot be pressed out from

between the teeth.

As shown in Fig. 17, rotate the ring

gear (use a box wrench on the ring

gear attaching bolts for a lever) five

complete revolutions in both directions

or until a clear tooth contact pattern

is obtained.
DIFFERENTIAL BEARING

CAP BOLTS

E 1776-A

FIG. 76-Backlash Check-

Typical
E
1001 - C

FIG.
7
7—Checking Gear Tooth

Contact—Typical

Certain types of gear tooth contact

patterns on the ring gear indicate in-

correct adjustment. Noise caused by

incorrect adjustment can often be cor-

rected by readjusting the gears. Ac-

ceptable patterns and the necessary

corrections are explained under Tooth

Contact Pattern Check in Section I.

Gear tooth runout can sometimes

be detected by an erratic pattern on

the teeth. However, a dial indicator

should be used to measure the runout

of the back face of the ring gear as

shown in Fig. 18. If this runout ex-

ceeds specifications, disassemble the

carrier and replace necessary parts as

indicated in Part 4-2, Section 4 and

Part 4-3, Section 4.
1699-A

FIG. 18 -Checking Ring Gear

Runout—Typical

Loosen the differential bearing cap

bolts,
and then torque them to 25 ft-

lbs.
Remove the adjusting nut locks.

Carefully loosen one of the adjusting

nuts to determine if any differential

bearing preload remains. If any pre-

load remains, the differential bearings

may be re-used, provided they are not

pitted or damaged.

INSPECTION AFTER

DISASSEMBLY OF CARRIER

(ALL AXLES)

Thoroughly clean all parts. Syn-

thetic seals must not he cleaned, soak-

ed or washed in cleaning solvents.

Always use clean solvent when clean-

ing hearings. Oil the bearings im-

mediately after cleaning to prevent rust-

ing. Inspect the parts for defects.

Clean the inside of the carrier before

rebuilding it. When a scored gear set

is replaced, the axle housing should he

washed thoroughly and steam cleaned.

This can onl\ be done effectively if the

axle shafts and shaft seals are re-

moved from the housing. Inspect indi-

vidual parts as outlined below.

GEARS

Examine the pinion and ring gear

teeth for scoring or excessive wear.

Extreme care must he taken not to

damage the pilot hearing surface of

the pinion.procarmanuals.com

04-02-18
Rear Axle — Removable Carrier Type
04-02-18

E 1195-C

FIG. 41—Removing
or
Installing

Pinion
and
Retainer Assembly

10.
Hold
the
flange with
the
tool

shown
in Fig. 22
(Ford)
or Fig. 23

(Mercury),
and
torque
the
pinion shaft

nut
to 175
ft-lbs.
Do not
exceed
175

ft-Ibs
at
this time.

11.
Check
the
pinion bearing
pre-

load
as
shown
in Fig. 42.
Correct

pre-load will
be
obtained when
the

torque required
to
rotate
the
pinion
in

the retainer
is as
specified
in
Part
4-3.

If
the
torque required
to
rotate
the pin-

ion
is
less than specified, tighten
the

pinion shaft
nut a
little
at a
time until

Inch-Pound

Torque Wrench

E1899A

FIG. 42—Checking Pinion Bearing

Preload
the proper preload
is
established.
Do

not overtighten
the nut. If
excessive

preload
is
obtained
as a
result
of
over-

tightening, replace
the
collapsible

bearing spacer.

Do
not
back
off the
pinion shaft
nut

to establish pinion bearing preload.
If

the torque
on the
pinion shaft
nut is

less than
175
ft-lbs after bearing
pre-

load
is
established,
a new
collapsible

spacer must
be
used.

SOLID PINION BEARING

SPACER INSTALLATION

The spacer
is
serviced
in 20
sizes

listed
in
Part
4-5. The
manner
of sel-

ecting
the
size spacer required
for ob-

taining correct preload
is
included
in

the following assembly procedure.

1.
Install
the
drive pinion rear bear-

ing cone
and
roller assembly
on the

pinion shaft
as
shown
in
Figs.
38 or

39.

2.
Select
a new
solid spacer
of a

larger size (0.485 inch thick),
and
slide

it over
the
pinion shaft against
the

rear bearing.

The pinion bearing preload
can be

accurately measured only when
the

pinion shaft
nut is
torqued
to 180-

220 ft-lbs.
If a
spacer smaller than
re-

quired
was
used,
the
specified
180-

220 ft-lbs torque would damage
the

bearings.
For
this reason,
the
largest

spacer should
be
tried first. Then,
if

the bearings
are too
loose,
the
size
of

the spacer
can be
decreased until
the

correct preload
is
obtained.

3.
Position
the
bearing retainer
and

cup assembly
on the
pinion shaft
and

install
the
front bearing cone
and rol-

ler. Press
the
front bearing cone
and

roller assembly into position,
as

shown
in Fig. 38.

4.
Mount
the
retainer
in a
holding

fixture
as
shown
in Fig. 23, and
place

the slinger over
the
pinion shaft
and

against
the
front bearing.

5.
Install
the
U-joint flange with

the tool shown
in Fig. 46.

6. Hold
the
flange with
the
tool

shown
in Fig. 23 or 24, and
install
the

old pinion shaft
nut.
Using
a
ft-lb
tor-
que wrench, torque
the nut to
180-220

ft-lbs.
While tightening
the nut,
rotate

the bearing retainer
to
determine
the

existance
of any
bearing preload

which will
be
indicated
by a
slight

drag
in the
rotation
of the
retainer.

DETERMINING SPACER

SIZE FROM

PRELOAD READING

1.
If
bearing drag indicates
a pre-

load condition exists, apply
an
in-lb

torque wrench
to the
pinion
nut as

shown
in Fig. 42 and
read
the
torque

required
to
turn
the
shaft. Effort

should
be
12-1/2
to
32-1/2 in-lbs.

2.
If
preload
is the
correct valve,

proceed with assembly procedure

given
in
Final Assembly
of
Pinion
and

Retainer, which follows.

2.
If
preload exists,
but is
below

specification, select
the
correct spacer

from
Fig. 43 and
install, completing

assembly
as
shown
in
Final Assembly

of Pinion
and
Retainer.

DETERMINING SPACER

SIZE FROM
END

PLAY READING

1.
If no
perceptible preload
is
felt

when rotating
the
pinion shaft, install

a dial indicator
as
shown
in Fig. 44,

so that
the
indicator point
is
resting

on
the end of the
pinion gear shaft

(companion flange
end).

2.
Use
both hands
to
squeeze
the

pinion shaft
and the
bearing retainer

together
(Fig. 45).
Record
the
endplay

reading shown
on the
dial indicator.

3.
Disassemble
the
pinion shaft
and

retainer
and
install
the
correct spacer

as shown
in Fig. 43.

4.
Proceed with assembly
of the pin-

ion shaft
and
retainer
as
directed
in

Final Assembly
of
Pinion
and
Retain-

er.

FINAL ASSEMBLY
OF

PINION
AND
RETAINER

1.
Install
the
drive pinion rear bear-

ing cone
and
roller assembly
on the

AS
END
PLAY

READS

(10/1000 inch)

USE THIS

SPACER
0

0.481
1

0.480
2

0.479
3

0.478
4

0.476

If there
is no end
play
and
preload
on the
bearings

IF PRELOAD READS

(in-lbs.)

USE THIS SPACER
2-11

0.482
12-20

0.483
5

0.476
6

0.474
7

0.474
8

0.472
9

0.472
10

0.470
11

0.470
12

0.468
13

0.468
14

0.466
15

0.465

exists:

21-30

0.484
31-45

0.485

FIG. 43— Solid Spacer Selectionprocarmanuals.com

04-04-07
Rear Axle — Ford Light-Duty (WER)
04-04-07

RUNOUT CHECK

E 1573-A

FIG. 70—Checking Backlash and Runout—Light-Duty (WER) Axle

All service operations on the differ-

ential case assembly can be performed

with the axle housing in the vehicle.

1.
Raise the vehicle on a hoist.

2.
Position the drain pan under the

axle housing. Loosen the housing

cover attaching bolts. Drain the lubri-

cant from the housing.

3.
Make scribe marks on the drive

shaft end yoke and the rear axle shaft

companion flange to insure proper po-

sition of the drive shaft at assembly.

Disconnect the driveshaft from the

rear axle companion flange. Be care-

ful to avoid dropping the loose univer-

sal joint bearing cups. Hold the cups

on the spider with tape. Mark the

cups so that they will be in their origi-

nal position in relation to the flange

when they are reassembled. Remove

the drive shaft from the transmission

extension housing. Install an oil seal

replacer tool in the transmission ex-

tension housing to prevent transmis-

sion leakage. Refer to the transmis-

sion group for the appropriate tool.

4.
Raise the vehicle and place

jack-type stands under the rear frame

crossmember. Lower the vehicle on a

hoist and allow the axle to lower as

far as possible.

5.
Remove the axle housing cover

and gasket. Discard the gasket.

6. Perform the Inspection Before

Disassembly of Carrier procedure.

Refer to Part 4-1, Section 3 of this

Shop Manual.

7.
Remove the attaching (Tinner-

man) nuts that secure the rear brake

drums to the axle shaft flanges, and

then remove the drums.

8. Working through the differential

case opening, remove the pinion shaft

lock bolt and pinion shaft (Fig. 2).

9. Push the axle shafts inward

toward the center of the axle housing.

Remove the C-locks (Fig. 3) from the

inner ends of the rear axles. Remove

the axle shafts from the housing. Ex-

treme care must be used to avoid con-

tacting the axle shaft seal lip with any
portion of the axle shaft except the

seal journal.

10.
Remove the bearings and oil

seals from the axle housing as shown

in Fig. 4.

11.
Remove the pinion side gears

and the side gear thrust washers.

12.
Remove both side bearing ad-

justing nut locks (bolts).

13.
Install a dial indicator (Fig. 10),

and check and record the backlash

and ring gear runout.

14.
Mark one differential bearing

cap and the case to help in positioning

the parts properly during assembly.

15.
Remove the bearing cap retain-

ing bolts. Remove the bearing caps,

cups,
adjusting nuts and case assem-

bly.

16.
Hold the drive pinion flange

and remove the pinion nut (Fig. 11).

Discard the nut.

17.
Remove the pinion flange (Fig.

12).

18.
Drive the pinion out of the

front bearing cone and remove it from

the carrier housing. Remove and dis-

card the bearing spacer.

19.
With a hammer and drift re-

move the pinion shaft oil seal out

through the front of the carrier hous-

ing.

20.
Remove the pinion rear bearing

from the drive pinion shaft (Fig. 13).

21.
Measure the shim which is

found under the bearing cone with a

Tool-T57L-485T-A

or 4851-K

El 906A
Tool
-
T6SL-485UA
\

E 1574-A

FIG. 12—Drive Pinion Flange

Removal

1575-A

FIG. 13—Pinion Rear Bearing

Removal

00/
- T57L-4220-A

FIG. 11—Typical Drive Pinion

Shaft Nut Removal
E 1576-A

FIG. 14—Differential Bearing

Removal

micrometer. Record the thickness of

the shim.

DISASSEMBLY OF

DIFFERENTIAL CASE

1.
If the 2 differential side bearings

are to be removed from the differen-

tial case, use the tool shown in Fig.

14.procarmanuals.com

05-01-01
05-01-01

Clutch
GROUP

5

PART
5-1
PAGE

Drive Shaft 05-01-01

PART
5-2

General Clutch Service 05-02-01
PART
5-3

Clutch

PART
5-4

Specifications
PAGE

05-03-01

05-04-01

PART
5-1
Drive Shaft

COMPONENT INDEX

DESCRIPTION

DRIVE SHAFT ANGLE CHECK

DRIVE SHAFT BALANCE CHECK

DRIVE SHAFT BALANCING

(Single Universal Joint)

DRIVE SHAFT DISASSEMBLY
AND

OVERHAUL

Single Universal Joint — Ford Design

Double Cardan Joint — Dana Design

Double Cardan Joint — Saginaw Design

DRIVE SHAFT REMOVAL
AND

INSTALLATION

DRIVE SHAFT RUNOUT CHECK
MODEL APPLICATION
All
Models

01-01

01-01

01-01

01-02

01-01
Ford
01-04

01-04

N/A

N/A
Mercury
01-04

01-04

N/A

N/A
Meteor
01-04

01-04

N/A

N/A
Cougar
01-04

01-04

N/A

N/A
Fairlane
01-04

01-04

N/A

N/A
Falcon
01-04

01-04

N/A

N/A
Montego
01-04

01-04

N/A

N/A
Mustang
01-04

01-04

N/A

N/A
Lincoln-
Continental
N/A

N/A

01-04

N/A
Thunderbird
N/A

N/A

N/A

01-05
Continental-
Mark
III
N/A

N/A

N/A

01-05

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.

DRIVE SHAFT TESTS

DRIVE LINE BALANCE CHECK

If detailed parts
of the
drive shaft

are replaced
and
shaft vibration
is en-

countered after installation, disconnect

the shaft
at the
slip yoke. Rotate
the

slip yoke
180
degrees; then, reconnect

the shaft
to the
slip yoke.
If the
vibra-

tion persists, disconnect
the
shaft
at

the rear axle companion flange.
Ro-

tate
the
companion flange
180
degrees

and reconnect
the
shaft
to the
flange.
DRIVE LINE ANGLE CHECK

Vibration
or
"shudder" which
is no-

ticeable either
on
fast acceleration
or

when coasting, using
the
engine
for a

brake,
may be
caused
by the
rear axle

housing being loose
on the
rear

springs
or by
improper pinion angle.

Refer
to
Group
3,
Part
2 for
pinion

angle checking procedures.
If the
rear

axle U-bolts (Fairlane, Montego,

Mustang, Cougar, Falcon models
only)
are
loose, torque
the
nuts
to

specification.

DRIVE SHAFT RUNOUT CHECK

Using
a
dial indicator, check
the

runout
at
each
end and in the
middle

of
the
driveshaft.
The
rear check

should
be
made
on the
small tube
sec-

tion
of the
shaft between
the
balance

weights
and the
yoke welds. Drive-

shaft runout should
not
exceed 0.035

inch
at any one
point.

DESCRIPTION

The drive shaft
is the
means
of

transferring power from
the
engine,

through
the
transmission,
to the dif-
ferential
in the
rear axle,
and
then
to

the rear wheels.
The
drive shaft incor-

porates
two
universal joints
and a
slip
yoke
(Fig. 1) or two
double cardan

universal joints,
one at
each
end of the

shaft (Figs.
2 and 3).
Each double
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