ECU FORD MUSTANG 1969 Volume One Chassis

06-02-04

Ford Design Three Speed Transmission

06-02-04

shift selector, remove
the
shift selector

assembly from
the
extension housing.

6.
On
Ford, Mercury
and
Meteor

vehicles disconnect
the
parking brake

cable from the equalizer lever and sep-

arate
the
lever from
the
crossmember.

7.
On
Ford, Mercury
and
Meteor

models, remove
the
bolts that secure

the extension housing
to the
engine

rear support.

8. Raise
the
rear
of
the engine high

enough
to
remove
the
weight from
the

crossmember.

9. Support
the
transmission with
a

transmission jack
and
remove
the

transmission from
the
flvwheel hous-

ing.

10.
Move
the
transmission and jack

rearward until
the
input shaft
is
clear

of
the
flywheel housing.

11.
Remove
the
transmission from

the jack
and
mount
it in a
holding

fixture.

Do
not
depress
the
clutch pedal

while
the
transmission
is
removed.

INSTALLATION

1.
Make certain that
the
machined

surfaces
of the
transmission case
and

the flywheel housing
are
free
of
dirt,

paint,
and
burrs.
2.
Install
a
guide
pin in
each lower

mounting bolt hole.

3.
Start
the
input shaft through
the

release bearing. Align
the
splines
on

the input shaft with
the
splines
in the

clutch disc. Move
the
transmission

forward
on the
guide pins until
the

input shaft pilot enters
the
bearing
or

bushing
in the
crankshaft.
If the

transmission front bearing retainer

binds
up on the
clutch release bearing

hub,
work
the
release bearing lever

until
the hub
slides onto
the
transmis-

sion front bearing retainer. Install
the

two transmission-to-flywheel housing

upper mounting bolts
and
lockwash-

ers.
Remove
the two
guide pins
and

install
the
lower mounting bolts
and

lock washers.

4.
Raise
the
rear
of the
engine high

enough
to
provide clearance
for in-

stalling
the
crossmember. Bolt
the

crossmember assembly
to the
frame

side supports.

5.
On
Ford, Mercury
and
Meteor

models, lower
the
engine until
the ex-

tension housing just contacts
the
rear

support. Align
the
bolt holes
in the

extension housing with those
in the

support. Then lower
the
engine
and

remove the jack. Install the two exten-

sion housing-to-support attaching
bolts
and
lock washers.

6.
On
Ford, Mercury
and
Meteor

models, insert
the
parking brake front

cable
in the
equalizer
and
install
the

equalizer
in the
bracket
on the

crossmember. Secure
the
parking

brake rear cable
to the
equalizer.

7.
On
vehicles equipped with
a

column-mounted gear shift selector,

secure
the
shift rods
to the
shift levers

at
the
transmission.
On
vehicles

equipped with
a
floor-mounted gear

shift selector, attach
the
shift selector

assembly
to the
extension housing.

8. Insert
the
speedometer cable
and

driven gear
in the
extension housing

and secure
it
with
a cap
screw
and

lock washer.

9. Remove
the
tool shown
in
Fig.
2,

Part 6-1, from
the
extension housing.

Align
the
reference marks
and
slide

the front universal joint yoke onto
the

output shaft
and
into
the
extension

housing. Connect
the
rear universal

joint
to the
axle pinion flange
and tor-

que
the
nuts
to
specifications.

10.
Fill
the
transmission
to the

proper level with
the
approved lubri-

cant.

11.
Adjust
the
clutch pedal free

travel
and the
shift linkage
as re-

quired.

MAJOR REPAIR OPERATIONS

DISASSEMBLY

1.
Mount
the
transmission
in a

holding fixture and drain
the
lubricant

by removing
the
drain plug,
if so

equipped,
or the
lower extension hous-

ing bolt.

2.
Remove
the cap
screws that
at-

tach
the
cover
to
the case. Remove
the

COVER
cover
and the
gasket (Fig.
5)
from
the

case.

3.
Remove
a
long spring that
re-

tains
the
detent plug
in the
case (Fig.

9).
Remove
the
detent plug with
a

small magnet.

4.
Remove
the cap
screws
and
lock

washers that attach
the
extension

housing
to
the case. Remove extension

FRONT

BEARING RETAINER

C2069-A
and gasket from
the
case.

5.
Remove
the cap
screws
and
lock

washers that attach
the
front bearing

retainer
to the
case. Remove
the
front

bearing retainer
and
gasket from
the

case.

6. Remove
the
lubricant filler plug

from
the
right side
of the
case. Work-

ing through
the
plug opening, drive

the roll
pin out of the
case
and
coun-

tershaft with
a
1/4-inch
punch
(Fig.

6).

TERSHAFT'
#

PIN

C 1841-A

FIG. 5—Transmission Case
and
Related Parts—Typical
FIG. 6—Removing Countershaft

Roll
Pinprocarmanuals.com

06-02-05

Ford Design Three Speed Transmission

06-02-05

Dummy

Shaft

FIG. 7—Removing Countershaft

7.
On 6-cylinder vehicles with a

model RAN transmission except

Ford, tap the countershaft from the

rear of the case with a dummy shaft

to remove the expansion plug from

the countershaft bore at the front of

the case.

8. Hold the countershaft gear with

a hook and with the tool shown in

Fig. 7, push the countershaft out the

rear of the case.

The countershaft (cluster) gear and

thrust washers (Fig. 21) can be low-

ered to the bottom of the case. Re-

move the countershaft from the rear

of the case.

9. On some models, remove the

snap ring that secures the speedometer

drive gear on the output shaft. Slide

the speedometer drive gear off the

shaft. Remove the speedometer drive

gear lock ball from the shaft. If the

vehicle is equipped with the new de-

sign retainer, depress the tang on the

speedometer drive gear retaining clip

and slide the gear off the output shaft

(Fig. 10).

10.
Remove the snap ring that re-

tains the output shaft bearing on the
C2070 A

shaft. Remove the bearing from the

case and shaft as shown in Fig. 8.

11.
Place both shift levers in the

neutral (center) position.

12.
Remove the set screw that se-

cures the first and reverse shift fork to

the shift rail. Slide the first and rev-

erse shift rail out through the rear of

the case.

13.
Slide the first and reverse syn-

chronizer forward as far as possible,

and rotate the first and reverse shift

fork upward. Then lift it from the

case.

14.
Move the second and third-

speed shift fork to the second-speed

position to gain access to the set

screw. Remove the set screw from the

fork. Rotate the shift rail 90 degrees

as shown in Fig. 11.

15.
Lift the interlock plug (Fig. 9)

from the case with a magnet.

16.
Tap on the inner end of the sec-

ond and third-speed shift rail to re-

move the expansion plug (Fig. 9) from

the front of the case. Remove the shift

rail.

17.
Remove the second and third-

speed shift rail detent plug and spring

from the detent bore.
18.
Pull the input gear and shaft

forward until the gear contacts the

case,
and then remove the large snap

ring. It is necessary to move the gear

forward to provide clearance when re-

moving the output shaft assembly

from RAT model transmissions. On

all other models, the input shaft and

gear is removed from the front of the

case at this time.

19.
Rotate the second and third-

speed shift fork upward, and lift it

from the case.

20.
Carefully lift the output shaft

assembly out through the top of the

case.

21.
On an RAT model, work the

input shaft bearing and gear back

through the bore in the case and out

through the top. Remove idler gear

shaft, driving from the front of the

case.

22.
Lift the reverse idler gear and

two thrust washer (Fig. 12) from the

case.
Lift the countershaft gear, thrust

washer, and dummy shaft from the

case.

23.
Remove the snap ring from the

front of the output shaft, and slide the

synchronizer and the second-speed

gear (Fig. 13) off the shaft.

24.
Remove the next snap ring and

tabbed thrust washer from the output

shaft. Then slide the first gear and

blocking ring off the shaft.

25.
Remove the next snap ring

from the output shaft. The first and

reverse synchronizer hub is a press fit

on the output shaft. To eliminate the

possibility of damaging the synchro-

nizer assembly, remove the synchro-

nizer hub using an arbor press as

shown in Fig. 21. Do not attempt to

remove or install the hub by hammer-

ing or prying.

C2071-A

FIG. 8—Removing Output Shaft

Bearing
SET SCREW
SCREW

MACHINED SURFACE

2ND AND 3RD SHIFT FORK

EXPANSION PLUG

1ST AND REVERSE

SHIFT RAIL

FIG. 9—Shift Rails and Forks Disassembled
C1798-Aprocarmanuals.com

06-02-06
Ford Design Three Speed Transmission

06-02-06

SPEEDOMETER DRIVE

GEAR

SPRING CLIP

FRONT

C2052-A

FIG. 10—Speedometer Drive Gear Installation—New Design

TOOL-T52T

6500-DJD

C1564-A

FIG. 11—Rotating Second and Third-Speed Shift Rail

PARTS REPAIR
OR

REPLACEMENT

SHIFT LEVERS
AND
SEALS

1.
Remove
the nut,
lock washer,

and flat washer that secure each shift

lever (Fig.
14) to the
lever
and
shaft
in
the transmission case. Lift
the
levers

off
the
shaft. Slide each lever
and

shaft
out of the
case. Discard
the CD-

ring from each shaft.

2.
Lubricate
the new
seals with

transmission lubricant
and
install

them
on the
shafts.

3.
Install
the
lever
and
shafts
in the
case.

4.
Position
a
shift lever
on
each

shaft
and
secure them with
a
flat

washer, lock washer,
and nut.

INPUT SHAFT BEARING

1.
Remove
the
snap ring securing

the input shaft bearing
(Fig. 15), and

press
the
input shaft
out of the
bear-

ing.

2.
Press
the
input shaft bearing

onto
the
input shaft with
the
tool

shown
in Fig. 16, and
install
the
snap

ring
on the
shaft.

SYNCHRONIZERS

1.
Push
the
sychronizer
hub
from

each synchronizer sleeve.

2.
Separate
the
inserts
and
insert

springs from
the
hubs.
Do not mix the

parts from
the
second
and
third-speed

synchronizer with
the
first
and
reverse

synchronizer (Figs.
17 and 18).

3.
Install
the
rear insert spring
in

the groove
of the
first
and
reverse
syn-

SHAFT AND LEVER

0-RING

SHIFT

LEVER

C 1845-A

FIG. 74—Shift Lever and Shafi

Disassembled

REVERSE

IDLER GEAR THRUST

WASHER ROLL
PIN

REVERSE IDLER

GEAR SHAFT

C1799-A

FIG. 72—Reverse Idter Shaft

Disassembled
BLOCKING RING SPEEDOMETER DRIVE GEAR

OUTPUT SHAFT

BLOCKING RINGS

SNAP RING

REAR BEARING

SYNCHRONIZER
THRUST WASHER
REVERSE GEAR

AND SLEEVE
C2072-A

FIG. 13—Output Shaft Disassembledprocarmanuals.com

06-02-08
Ford Design Three Speed Transmission

06-02-08

FIRST-REVERSE

SELECTOR LEVER

SELECTOR LEVER

SHAFT

SUPPORT BRACKET

SECOND-THIRD

SELECTOR LEVER

C
2053-A

79—Gear Shift Control Assembly Disassembled—3-Speed
5.
Lower the control assembly from

the vehicle and remove the boot.

6. Remove* the nut from the selec-

tor lever shaft and remove the shaft

from the assembly. Then, llift the se-

lector arm and selector levers out of

the support bracket. Do not lose the

detent spring located between the

first-reverse selector lever and the se-

lector arm (Fig. 19).

7.
Lubricate all mating surfaces

with lithium grease before assembly.

8. Position the detent spring be-

tween the first-reverse selector lever

and the selector arm. Be sure the wide

base of the spring rests against the se-

lector lever. Position the second-third

selector lever against the selector arm

and insert the entire assembly into the

support bracket.

9. Install the selector lever shaft

through the support bracket and selec-

tor lever assembly and install the re-

taining nut.

10.
Slide the control assembly into

the boot and attach the entire assem-

bly to the extension housing. Do not

lose the spacer located inside the as-

sembly. Be sure the back-up light

switch is properly installed.

11.
Install the two bolts securing

the gear shift lever to the shift control

assembly.

12.
Insert a 1/4 inch diameter

alignment pin in the alignment holes

of the control assembly.

13.
Position the shift rods on the

selector levers and install the lock

nuts.

14.
Remove the alignment pin.

15.
Check the operation of the shift

mechanism for smooth cross-over and

adjust as required.

FRONT

REAR

C 1742-A

FIG.
20—First
and
Reverse Speed Synchronizer Insert Spring

Installation

iNEEDLE BEARINGS
(25
EACH
END

\

BEARING

RETAINER ROLL
PIN

. 27—Countershaft Gear Disassembled
BEARING

RETAINER

C1805-
A
ASSEMBLY

1.
Coat the reverse idler gear thrust

surfaces in the case with a thin film of

lubricant and position the two thrust

washers in place.

2.
Position the reverse idler gear

and dummy shaft in place. Align the

gear bore and thrust washers with the

case bores and install the reverse idler

shaft.

3.
Measure the reverse idler gear

end play with a feeler gauge. End play

should be within specification. If the

end play is not within specification,

replace the thrust washers. If the end

play is within limits, leave the reverse

idler gear installed.

4.
Lubricate the output shaft

splines and machined surfaces with

transmission lubricant.procarmanuals.com

06-02-09
Ford Design Three Speed Transmission

06-02-09

PRESS
RAM

OUTPUT SHAFT

SYNCHRONIZER
PRESS
RAM

OUTPUT SHAFT
Tool-T63P7025-A

SYNCHRONIZER

HUB

REMOVAL INSTALLATION c 1718-A

FIG. 22—Removing
and
Installing First
and
Reverse Synchronizer

5.
The
first
and
reverse synchroniz-

er
hub is a
press
fit on the
output

shaft.
To
eliminate
the
possibility
of

damaging
the
sychronizer assembly,

install
the
synchronizer
hub
with
the

teeth
end of the
gear facing toward

the rear
of the
shaft, using
an
arbor

press
as
shown
in Fig. 22. Do not at-

tempt
to
remove
or
install
the hub by

hammering
or
prying.

6. Place
the
blocking ring
on the

tapered machined surface
of the
first

gear.

7.
Slide
the
first gear onto
the out-

put shaft with
the
blocking ring

toward
the
rear
of the
shaft. Rotate

the gear
as
necessary
to
engage
the

three notches
in the
blocking ring with

the synchronizer inserts. Secure
the

first gear with
the
thrust washer
and

snap ring.

8. Slide
the
blocking ring onto
the

tapered machined surface
of the sec-

ond gear. Slide
the
second gear with

blocking ring
and the
second
and
third

gear synchronizer onto
the
mainshaft.

The tapered machined surface
of the

second gear must
be
toward
the
front

of
the
shaft. Make sure that
the

notches
in the
blocking ring engage

the synchronizer inserts. Secure
the

synchronizer with
a
snap ring.

9. Coat
the
bore
of the
input shaft

and gear with
a
thin film
of
grease.
A

thick film
of
grease will plug
the lu-

bricant holes
and
prevent lubrication

to
the
bearings. Install
the 15
bearings

(Fig.
15) in the
bore.

10.
If
working
on a RAT
model

transmission, install
the
input gear

and bearing through
the top of the

case
and
through
the
bore
in
front
of

the case.
On RAN
models,
me
input

shaft
is
installed through
the
front
of

the transmission. Install
the
snap ring

in
the
bearing groove.
11.
Position
the
output shaft
as-

sembly
in the
case. Position
the sec-

ond
and
third-speed shift fork
on the

second
and
third-speed synchronizer.

12.
Place
a
detent plug spring
and

a plug
in the
case
(Fig. 9).
Place
the

second
and
third-speed synchronizer
in

the second speed position (toward rear

of transmission). Align
the
fork
and

install
the
second
and
third-speed shift

rail.
It
will
be
necessary
to
depress
the

detent plug
to
enter
the
rail
in the

bore.
Move
the
rail inward until
the

detent plug engages
the
forward notch

(second-speed position).

13.
Secure
the
fork
to the
shaft

with
the set
screw. Move
the
synchro-

nizer
to the
neutral position.

14.
Install
the
interlock plug
in the

case.
If the
second
and
third-speed

shift rail
is in the
neutral position,
the

top
of the
interlock will
be
slightly

lower than
the
surface
of the
first
and

reverse shift rail bore.

15.
Move
the
first
and
reverse
syn-

chronizer forward
to the
first-speed

position. Place
the
first
and
reverse

shift fork
in the
groove
of the
first

and reverse synchronizer. Rotate
the

fork into position
and
install
the
first

and reverse shift rail. Move
the
rail

inward until
the
center notch (neutral)

is aligned with
the
detent bore. Secure

the fork
to the
shaft with
the set

screw.

16.
Install
a new
shift rail expan-

sion plug
in the
front
of the
case.

17.
Hold
the
input shaft
and
block-

ing ring
in
position. Then move
the

output shaft forward
to
seat
the
pilot

in
the
roller bearings
of the
input

gear.

18.
Tap the
input gear bearing into

place
in the
case while holding
the

output shaft
to
prevent
the
roller bear-

ings from dropping. Install
the
front
C1806-A

FIG. 23—Installing Output Shaft

Rear Bearing

bearing retainer
and new
gasket
mak-

ing sure that
the oil
return slot
is at

the bottom
of the
case. Install
and

torque
the
attaching screws
to
specifi-

cation.

19.
Install
the
large snap ring
on

the rear bearing. Place
the
bearing
on

the output shaft with
the
snap ring

end toward
the
rear
of the
shaft. Press

the bearing into place with
the
tool

shown
in Fig. 23.
Secure
the
bearing

to
the
shaft with
a
snap ring.

20.
On
some models, hold
the

speedometer drive gear lock ball
in

the detent
and
slide
the
speedometer

drive gear into place. Secure
the
gear

with
a
snap ring.
On
models equipped

with
the new
design retainer, install

the speedometer drive gear retaining

clip
on the
shaft with
the
lower tang

in
the
retaining hole. Align
the
groove

in
the
gear with
the
clip
and
slide
the

gear forward until
the
upper tang
on

the clip locks
the
gear
(Fig. 9).

21.
Place
the
transmission
in the

vertical position. Working through
the

drain hole
in the
bottom
of the
case,

align
the
bore
of the
countershaft gear

and
the
thrust washers with
the
bore

of
the
case with
a
screwdriver.

22.
Working from
the
rear
of the

case,
push
the
dummy shaft
out of the

countershaft gear with
the
counter-

shaft. Before
the
countershaft
is com-

pletely inserted
in the
bore, make sure

that
the
hole that accommodates
the

roll
pin is
aligned with
the
hole
in the

case.
Drive
the
shaft into place
and in-

stall
the
roll
pin. On all 8
cylinder
ve-

hicles
and
Ford
6
cylinder models,
the

countershaft
is a
press
fit in the
case.

On
6
cylinder models with model

RAN transmissions there
is a
counter-

shaft-to-case clearance
of
0.020 inch

at
the
front bore
and 0.010 at the
rearprocarmanuals.com

06-02-10
Ford Design Three Speed Transmission
06-02-10

bore.
On these 6 cylinder models, in-

stall a new expansion plug in the

countershaft bore at the front of the

case.

23.
Coat a new extension housing

gasket with sealer and position it on

the case.

24.
Install lock washers on the five

attaching screws. Dip the threads of

the cap screws in sealer. Secure the

housing to the case and torque the
cap screws to specification.

25.
Install the filler and drain plugs

(if equipped) in the case. Make sure

that the magnetic plug is installed in

the bottom of the case.

7.6. Place the transmission in gear.

Pour lubricant over the entire gear

train while rotating the input or out-

put shaft.

27.
Install the remaining detent
plug in the case. Install the long

spring (which is retained by the case)

to secure the detent plug.

28.
Coat a new cover gasket (Fig.

5) with sealer. Secure the cover with

cap screws. Torque the screws to spec-

ification.

29.
Check the operation of the

transmission in all of the gear posi-

tions.procarmanuals.com

06-03-03
Ford Design Four-Speed Transmission
06-03-03

cable from the equalizer lever and sep-

arate the lever from the crossmember.

5.
Remove the hairpin retainer se-

curing the cable to the transmission

rear support crossmember, and then

pull the cable assembly forward and

out of the crossmember.

6. Remove the retaining clip, flat

washer, and spring washer that se-

cures the shift rods to the shift levers.

7.
Remove the bolts that attach the

shift linkage control bracket to the ex-

tension housing and position the as-

sembly out of the way.

8. Support the engine with a trans-

mission jack and remove the extension

housing-to-engine rear support attach-

ing bolts.

9. Raise the rear of the engine high

enough to remove the weight from the

crossmember. Remove the bolts re-

taining the crossmember to the frame

side supports and remove the

crossmember.

10.
Support the transmission on a

jack and remove the bolts that attach

the transmission to the flywheel hous-

ing.

11.
Move the transmission and jack

rearward until the transmission input

shaft clears the flywheel housing. If

necessary, lower the engine enough to

obtain clearance for transmission re-

moval.

Do not depress the clutch pedal

while the transmission is removed.
INSTALLATION

1.
Make sure that the mounting

surface of the transmission and the

flywheel housing are free of dirt,

paint, and burrs. Install two guide

pins in the flywheel housing lower

mounting bolt holes. Move the trans-

mission forward on the guide pins

until the input shaft splines enter the

clutch hub splines and the case is posi-

tioned against the flywheel housing.

2.
Install the two upper transmis-

sion to flywheel housing, mounting

bolts snug, and then remove the two

guide pins. Install the two lower

mounting bolts. Torque all mounting

bolts to specifications.

3.
Raise the rear of the engine and

install the crossmember. Install and

torque the crossmember attaching

bolts to specifications, then lower the

engine.

4.
With the transmission extension

housing resting on the engine rear

support, install the transmission ex-

tension housing attaching bolts. Tor-

que the bolts to specifications.

5.
Position the shift linkage control

bracket to the extension housing and

install the attaching bolts.

6. Secure each shift rod to its re-

spective lever with the spring washer,

flat washer, and retaining pin.

7.
Guide the parking brake cable

assembly through the hole in the
transmission rear support crossmemb-

er. Secure the cable assembly to the

crossmember with the hair pin retain-

er.

8. Insert the parking brake front

cable in the equalizer and install the

equalizer in the bracket on the

crossmember. Secure the parking

brake rear cable to the equalizer.

9. Connect the speedometer cable

to the extension housing.

10.
Remove the extension housing

installation tool and slide the forward

end of the drive shaft over the trans-

mission output shaft. Connect the

drive shaft to the rear U-joint flange.

11.
Place both forward gear shift

levers and the reverse shift lever in the

neutral position and insert a 1/4 inch

diameter alignment tool in the shift

linkage alignment hole (Fig. 17). It

may be necessary to loosen the adjust-

ment nuts to install the alignment

tool. Adjust the linkage as necessary

and tighten the adjustment nuts to

specifications. Remove the alignment

tool.

12.
Fill the transmission to the

proper level with the specified lubri-

cant.

13.
Lower the car. Check tne shift

and crossover motion for full shift en-

gagement and smooth crossover oper-

ation.

MAJOR REPAIR OPERATIONS

DISASSEMBLY

1.
Mount the transmission in a

holding fixture and drain the lubri-

cant.

2.
Remove the cover attaching

screws from the case. Lift the cover

and gasket from the case.

3.
Remove the long spring that re-

tains the detent plug in the case (Fig.

4).
Remove the detent plug with a

small magnet.

4.
Remove the extension housing

attaching screws and lock washers.

Remove the housing and the gasket.

5.
Remove the input shaft bearing

retainer attaching screws. Slide the re-

tainer off the input shaft.

6. Support the countershaft gear

with a wire hook. Working from the

front of the case, push the counter-

shaft out the rear of the case as shown

in Fig. 3. Lower the countershaft to

the bottom of the case with the wire

hook. Remove the hook.
Tool-T64P-711hA

COUNTERSHAFT

C2073-A

FIG. 3—Removing Countershaft

From Case

7.
Place the first and second-speed

gear shift lever and the reverse shift

lever in the neutral position. Place the

third and fourth-speed gear shift lever

in the third-speed position.

8. Remove the attaching screw

from the third and fourth-speed shift

fork. Tap on the inner end of the shift

rail to unseal the expansion plug from
the front of the case. Then withdraw

the third and fourth-speed shift rail

from the front of the case. Do not

lose the interlock pin from the shift

rail.

9. Remove the set screw from the

first and second-speed shift fork.

Slide the first and second-speed shift

rail out the rear of the case.

10.
Remove the interlock plug and

the detent plug from the top of the

case (Fig. 4) with a magnet.

11.
On some models, remove the

snap ring that secures the speedometer

drive gear to the output shaft. Slide

the gear off the shaft, then remove the

speedometer gear drive ball. On mod-

els equipped with the new design re-

tainers, depress the tang on the speed-

ometer drive gear retaining clip and

slide the speedometer gear off the

shaft. (Fig. 5).

12.
Remove the snap ring that se-

cures the output shaft bearing to the

shaft.procarmanuals.com

06-03-05
Ford Design Four-Speed Transmission

06-03-05

DETAIL
4

FORD
AND
MERCURY

DETAIL
5

COUGAR. FAIRLANE,

FALCON,
MONTEGO,

AND MUSTANG
REVERSE SHIFT

RAIL

C1533-B

FIG. 6—Removing Output Shaft Bearing

3.
Remove
and
discard
the
O-ring

from each
cam and
shaft (Fig.
12).

4.
Dip the new
Orings
in
gear
lu-

bricant
and
install them
on the cam

and shafts.

5.
Slide each cam
and
shaft into
its

respective bore
in the
transmission

case.

6. Secure each shaft lever with
a

flat washer, lock washer
and nut.

GEAR SHIFT CONTROL

ASSEMBLY

1.
Remove
the
four screws attach-

ing
the
lower boot
to the
floor
pan.

2.
Remove the two bolts that secure

the gear shift lever
to
the shift control

assembly.

THIRD AND,

FOURTH

SPEED

SHIFT

FORK

FIRST
AND

REVERSE

SPEED

SHIFT

FORK
3.
Remove
the two
piece lock nuts

that secure
the
shift rods
to the
shift

levers.

4.
Remove
the
three bolts attaching

the control assembly
to the
extension

housing. Lower
the
control assembly

and boot
and
remove
the
control
as-

sembly from
the
boot.

5.
Remove the back-up light switch.

6. Remove
the
outer
nut
from
the

selector lever shaft
and
slide
the
shaft

from
the
control assembly.

7.
Lift
the
outer support bracket,

rubber washer, first-second,
and

third-fourth selector levers
off the as-

sembly (Fig.
13).

8. Remove
the two
bolts retaining

the inner support bracket
to the
back

THIRD
AND
FOURTH

SPEED SYNCHRONIZER

OUTPUT SHAFT MOVED

TO RIGHT SIDE
OF
CASE

C2075-A
C2077-A
Tool-T52T-

C2076-A

FIG. 9—Rotating Reverse

Shift Rail

plate. Lift
the
inner support bracket,

selector arm, and reverse selector lever

from
the
back plate.

9. Lubricate
all
mating surfaces

with lithium grease before assembly.

10.
Position
the
reverse gear selec-

tor lever, selector
arm and the
inner

support bracket
on the
back plate.

The reverse gear selector lever will

have
a
flat spot
on the
top
of
the lever

to distinguish
it
from
the
third-fourth

selector lever. Install the two retaining

bolts finger tight.

11.
Insert
a 1/4
inch gauge
pin

through
the
alignment holes
of the se-

lector levers
and
support brackets.

Line
up the
gauge
pin
perpendicular

to the back plate. Torque the two sup-

port bracket-to-back plate retaining

nuts
to
specification
and
remove
the

gauge
pin.

12.
Position
the
rubber washer,

first-second
and
third-fourth selector

levers
in the
outer support bracket.

Position this assembly against
the

inner support
so
that the selector lever

shaft holes
in the
selector levers
and

support brackets
are
aligned.

13.
Install
the
selector lever shaft

"~ REVERSE IDLER

GEAR SHAFT

Tool-T64P-7140

C2078-A

FIG. 7—Removing Shift Fork

From Case
FIG. 8—Removing Output

Shaft Assembly
FIG. TO—Removing Reverse Idler

Gear Shaftprocarmanuals.com

06-03-06
Ford Design Four-Speed Transmission
06-03-06

BEARING

7C
SPEEDOMETER

DRIVE GEAR

172

OUTPUT

SHAFT

SEAL

SNAP RING 7Aon

SPEEDOMETER GEAR

DRIVE BALL

353351•S

BLOCKING RING

7107

FIRST AND SECOND

SPEED SYNCHRONIZER

7124

SECOND SPEED GEAR

7102

THIRD AND FOURTH

SPEED SYNCHRONIZER

•7124

SNAP RING - 7109

FIG.
7
7—Output Shaft Disassembled

and torque the retaining nuts to speci-

fication.

14.
Install the back-up light switch

on the control assembly.

15.
Slide the lower boot over the

shift control assembly and attach the

entire assembly to the extension hous-

ing with the three bolts.

16.
Install the two bolts securing

the gear shift lever to the control as-

sembly.

17.
Pull the top lip of the lower

boot over the edges of the floor pan

and secure the upper boot to the lower

boot and floor pan with the four re-

taining screws.

18.
Position the shift rods in the se-

lector levers and install the retainers.

19.
Adjust the shift linkage as out-

lined previously in this section.

20.
Check the operation of the shift
mechanism for smooth

Adjust as required.
cross-over.

INPUT SHAFT BEARING

1.
Remove the snap ring that se-

cures the bearing to the shaft (Fig.

14).

2.
Press the input shaft gear out of

the bearing as shown in Fig. 15.

3.
Press a new bearing onto the

input shaft with the tool shown in Fig.

15.

4.
Secure the bearing with a snap

ring.

SYNCHRONIZERS

1.
Push the synchronizer hub from

each synchronizer sleeve (Fig. 16).

2.
Separate the inserts and insert

springs from the hubs. Do not mix the

parts of the first and second-speed
C1529-C

synchronizer with the third and

fourth-speed synchronizer.

3.
Position the hub in the sleeve,

making sure that the alignment marks

are properly indexed.

4.
Place the three inserts into place

on the hub. Install the insert springs

making sure that the irregular surface

(hump) is seated in one of the inserts.

Do not stagger the springs.

COUNTERSHAFT GEAR

BEARINGS

1.
Remove the dummy
sKo.ft,
two

bearing retainer washers, and the 21

roller bearings (Fig. 17) from each

end of the countershaft gear.

2.
Coat the bore in each end of the

countershaft gear with grease.

3.
Hold the dummy shaft in the

gear and install the 21 roller bearingsprocarmanuals.com

06-03-08
Ford Design Four-Speed Transmission
06-03-08

ROLLER BEARINGS

SNAP RINGS

FIG. 14—Input Shaft Gear Disassembled
C1802-
A

Hardwood

Block

Tool-7025-G

OR
7025-B

Detail
5

REMOVAL

FIG. 15—Replacing Input Shaft Bearing

INSERT SPRING
INSTALLATION

ETCH MARKS
C2079-A

INSERT SPRING

SLEEVE
HUB

FIRST AND SECOND SPEED SYNCHRONIZER

INSERT

INSERT SPRING

INSERT
SLEEVE

INSERT SPRING

HUMP

THIRD
AND
FOURTH SPEED SYNCHRONIZER

FIG. 16—Synchronizers Disassembled
GROOVE
TO
FACE

TOWARD FRONT

OF TRANSMISSION

C2080.A
end play with
a
feeler gauge. End play

should
be
within specification.
If the

end play
is not
within limits, replace

the thrust washers.
If the end
play
is

within limits, leave
the
reverse idler

gear installed.

10.
Position
the
reverse gear shift

rail detent spring
and
detent plug
in

the case. Hold
the
reverse shift fork
in

place
on the
reverse idler sliding gear

and install
the
shift rail from
the
rear

of
the
case. Secure
the
fork
to the
rail

with
the
Allen head
set
screw.

11.
Install
the
first
and
second-

speed synchronizer onto
the
front
of

the output shaft (Fig.
11)
making sure

that
the
shift fork groove
is
toward

the rear
of the
shaft.
The
first
and

reverse synchronizer
hub is a
press
fit

on
the
output shaft.
To
eliminate
the

possibility
of
damaging
the
synchro-

nizer assembly, install
the
synchroniz-

er
hub
with
the
teeth
end of the
gear

facing toward
the
rear
of the
shaft,

using
an
arbor press
as
shown
in
Part

6-2,
Fig. 20. Do not
attempt
to re-

move
or
install
the
hub
by
hammering

or prying.

12.
Position
the
blocking ring
on

the second-speed gear.

13.
Slide
the
second-speed gear

onto
the
front
of the
shaft, making

sure that
the
inserts
in the
synchroniz-

er engage
the
notches
in the
blocker

ring.

14.
Install
the
second-speed gear

thrust washer
and
snap ring.

15.
Slide
the
third-speed gear onto

the shaft with
the
synchronizer coned

surface toward
the
front.

16.
Place
a
blocking ring
on the

third-speed gear.

17.
Slide
the
third
and
fourth-

speed gear synchronizer onto
the
shaft

making sure that
the
inserts
in the

synchronizer engage
the
notches
in the

blocking ring.

18.
Install
the
snap ring
on the

front
of the
output shaft.

19.
Position
the
blocking ring
on

the first-speed gear.

20.
Slide
the
first-speed gear onto

the rear
of the
output shaft making

sure that
the
notches
in the
blocking

ring engage
the
synchronizer inserts.

21.
Install
the
heavy thrust washer

on
the
rear
of the
output shaft.

22.
Support
the
thrust washer
and

first-speed gear
to
prevent them from

sliding
off the
shaft
and
carefully

lower
the
output shaft assembly into

the.
case
as
shown
in Fig. 8.

23.
Position
the
first
and
second-

speed shift fork
and the
third
and

fourfh-speed shift fork
in
place
on

their respective gears
and
rotate them

into place.procarmanuals.com