1969 FORD MUSTANG parking brake

07-01-09

General Transmission Service

07-01-09

For example, on a C4 transmission,

if the pressure at 10 inches of vacuum

was 120 psi and the pressure at 1.0

inch of vacuum was 170 psi, and up-

shifts and downshifts were harsh, a di-

aphragm adjustment to reduce the di-

aphragm assembly spring force would

be required.

If the pressure readings are low, an

adjustment to increase diaphragm

spring force is required.

To increase control pressure, turn

the adjusting screw in clockwise to re-

duce control pressure, back the adjust-

ing screw out by turning it counte-

rclockwise. One complete turn of the

adjusting screw (360 degrees) will

change idle line control pressure ap-

proximately 2-3 psi. After the adjust-

ment is made, install the vacuum line

and make all the pressure checks as

outlined in the Specification Section.

The diaphragm should not be ad-

justed to provide pressure below the

ranges shown in the Specification Sec-

tion in order to change shift feel. To

do so could result in soft or slipping

shift points and damage to the trans-

mission.

ALTITUDE

COMPENSATING TYPE

The altitude—compensating di-

aphragm is provided with an adjust-

ment screw located in the vacuum

connecting tube (Fig. 15). The adjus-

table feature allows control and TV

pressures to be adjusted (within limits)

to correct soft or harsh shift feel.

Control and TV pressures are in-

creased or decreased by turning the

adjusting screw.

Before replacing or adjusting the di-

aphragm, it must first be determined

that the pressure or vacuum is actual-

ly out of specification and that the

cause of the problem is not due to

other items within the transmission or

vacuum connecting lines.

If the tests outlined in the Specifi-
cation Section have been performed

and pressures are within specification

but shift feel is unsatisfactory, or if

the pressure is too high or too low at

10 inches of vacuum, the vacuum di-

aphragm may be adjusted to improve

the shift feel.

If shifts are excessively harsh, the

diaphragm should be adjusted to re-

duce control pressure by backing off

the adjusting screw (counterclock-

wise).
If shift quality is extremely soft,

control pressure should be increased

by turning the adjusting screw inward

(clockwise).

To adjust the vacuum diaphragm to

compensate for harsh shift quality,

first check control pressure in D, 2

and 1 at 10 inches manifold vacuum

and note the pressure reading ob-

tained. Remove the T-fitting from the

vacuum hose and back off the adjust-

ing screw (counterclockwise) by one

full turn. Each full turn will reduce

control pressure by approximately 2

1/2 psi at 10 inches of vacuum. Test

the vehicle for shift feel. If shift quali-

ty is still harsh, a further adjustment

should be made to reduce control

pressure. However, control pressure

should not be reduced below the speci-

fication shown for 10 inches of vacu-

um. If control pressure has been re-

duced to the low limit and shift feel is

still excessively harsh, the clutches and

band should be checked for correct

operation.

To adjust the vacuum diaphragm to

compensate for extremely soft shifts,

record the control pressure reading at

10 inches of vacuum in D, 2 and 1,

then make an initial adjustment of

one full turn inward (clockwise). Test

the vehicle for shift feel and again ad-

just the diaphragm, if necessary. Con-

trol pressure at 10 inches of vacuum

must not exceed the high limit shown

in the Specification Section.

When the necessary adjustments

have been completed and shift feel is

satisfactory, repeat all the tests out-

ADJUSTING

SCREW

PRIMARY

THROTTLE VALVE
DIAPHRAGM

SPRING

D 1639-A

FIG. 15—Altitude Compensating Type Vacuum Diaphragm
lined in the Specification Section. All

tests must be within specifications.

The adjustable vacuum unit must not

be used to allow for adjusting control

or TV pressures that are out of speci-

fications. If these pressures are found

to be out of specifications the cause

must be determined and corrected bef-

ore making any adjustment.

NEUTRAL START SWITCH

ADJUSTMENT AND

REPLACEMENT—COLUMN SHIFT

There are two types of column-

mounted neutral start switches: A and

B.
Type A switch has a parking brake

brake-release vacuum valve. Type B

switches do not have a vacuum valve.

The switches differ in appearance but

not in operation. Both switches are

actuated by a removable steel lever,

which is installed in the shifter tube

within the steering column assembly.

The following procedures outline the

steps necessary to correctly adjust and

replace the neutral start switch.

SWITCH ADJUSTMENT

Neutral Position

1.
With the selector lever held light-

ly against the neutral stop, attempt to

start the engine. If the engine starts

while holding the lever but does not

start when the lever is released, the

shift linkage should be adjusted. If the

engine does not start in either condi-

tion, adjust the switch.

2.
To adjust the switch in neutral,

place the transmission selector lever

against the stop of the neutral detent

position.

3.
Loosen the two retaining screws

that locate the switch on the steering

column (Fig. 16).

4.
With the selector lever against

the neutral stop, rotate the switch

until a start in the neutral position is

obtained. Then, tighten the switch at-

taching screws to 20 in-lbs torque.

5.
With the switch properly adjust-

ed in neutral, place the selector lever

in the 1 position and push the park

reset button (Fig. 16) to the left

(counterclockwise) until it stops. The

park reset must be performed when-

ever the switch has been adjusted.

Park Position

1.
Place the selector lever in the

park position, release the lever and at-

tempt to start. If the engine does not

start, reset the park adjustment.procarmanuals.com

07-01-10
General Transmission Service

07-01-10

2.
To adjust the switch for the park

position, place the transmission selec-

tor lever in 1 and push the park reset

button (Fig. 16) to the left (counter-

clockwise) until it stops.

3.
Check the operation of the

switch in each selector lever position.

The starter should engage in only the

neutral and park positions. Be sure to

perform
the
park reset
if for any rea-

son
the
neutral switch
is
adjusted.

If,
after performing
the
switch
ad-

justments,
the
starter still will
not en-

gage
in the
neutral
or
park positions,

replace
the
switch. Never replace
the

neutral switch until
the
switch adjust-

ments have been made.

SWITCH REPLACEMENT

1.
Disconnect the neutral start

switch wires at the plug connector.

2.
Disconnect the vacuum hoses, if

so equipped.

3.
Remove the two screws securing

the neutral start switch to the steering

column and lift the switch from the

column.

Check the column to be sure the

metal switch actuator is secure to the

shift tube and that it is seated as far

forward against the shift tube bearing

as is possible. Also check for a broken

or damaged actuator. If it is broken

or damaged, replace it as shown in

Figure 17.

4.
Before installing a new switch to

the column, check to see that the red

neutral position gauge inserted in the

neutral pinning hole. If the pin is

missing, align the two holes at the

neutral pinning hole on top of the

switch and install a No. 43 drill or

0.092-0.093 inch gauge pin.

5.
While holding the selector lever

against the stop in the neutral detent
ACTUATOR LEVER INSTALLED

WHEN INSTALLING
THE
ACTUATOR

LEVER
BE
SURE THAT
IT
1$ SEATED

AS
FAR
FORWARD AGAINST
THE
SHIFT

TUBE BEARING
AS IS
POSSIBLE.
FORWARD

D2019-A

FIG. 17—Removing
or
Installing Neutral Start Switch Actuator Lever

position, place the switch on the col-

umn and install the two attaching

screws. Tighten the screws to 20 in-lbs

torque.

6. Remove the gauge pin (or No.

43 drill if used).

7.
Connect the switch wires to the

plug connector and check for a start

in the neutral position. The starter

should engage with the selector lever

against the neutral stop. If not, loosen

the attaching screws and move the

switch just enough to engage the start-

er. Tighten the screws to 20 in-lbs tor-

que.

8. With the switch properly adjust-
ed in neutral, push the park reset but-

ton (Fig. 16) to the left (counterclock-

wise) until it stops. The park reset

must be performed whenever the

switch has been adjusted or replaced.

9. To adjust the switch for the park

position, place the transmission selec-

tor lever in 1 and push the park reset

button (Fig. 16) to the left (counter-

clockwise) until it stops.

10.
Connect the vacuum hoses to

the switch, if so equipped.

11.
Check the operation of the

switch in each selector lever position.

The starter should engage in only the

neutral and park detent positions.

NEUTRAL SWITCH-TYPE
A

(USED
ON
VEHICLES WITH VACUUM

OPFRATED PARKING BRAKE)
NEUTRAL SWITCH-TYPIE
B

(USED
ON
VEHICLES WITHOUT VACUUM

OPERATED PARKING BRAKE)

ATTACHING

FIG.
16—Ad
justing Neutral Switch—Column Shift
D2018-Aprocarmanuals.com

07-02-11
C4 Automatic Transmission
07-02-11

REMOVAL AND INSTALLATION

An oil impregnated plastic grommet

is incorporated in the end of the man-

ual shift linkage lever arm on all col-

umn shift vehicles. A special tool

T67P-7341-A is required to install the

grommet in the manual lever, and to

install the manual linkage rod into the

grommet. Refer to Part 7-1, Section

2,
for the grommet replacement pro-

cedures.

TRANSMISSION REMOVAL

1.
Raise the vehicle and remove the

converter cover attaching bolts, at the

lower front side of the converter hous-

ing. Remove the cover.

2.
Remove the two conveter drain

plugs (Fig. 20). Drain the fluid from

the converter. Install the two convert-

er drain plugs.

3.
Remove the drive shaft and in-

stall the extension housing seal repla-

cer tool in the extension housing.

4.
Remove the vacuum line hose

from the transmission vacuum unit.

Disconnect the vacuum line from the

retaining clip.

5.
Remove the two extension

housing-to-crossmember attaching

bolts.

6. Remove the speedometer cable

from the extension housing.

7.
Disconnect the exhaust pipe

flange from the manifolds.

8. Remove the parking brake cable

from the equalizer lever.

9. Remove the fluid filler tube from

the pan and drain the transmission

fluid on PEA models. On PEB and

PEE models, loosen the transmission

CONVERTER A
ATT,
pan bolts and drain the fluid at one

corner of the pan. Tighten the attach-

ing bolts after the fluid has drained.

10.
Disconnect the fluid cooler lines

from the transmission case.

11.
Remove the manual and kick-

down linkage rods from the transmis-

sion control levers.

On vehicles equipped with a column

shift, use tool T67P-7341-A to remove

the selector rod from the manual

lever.

12.
On a Mustang, disconnect the

neutral start switch wires from the re-

taining clamps and connectors.

13.
Disconnect the starter cable.

Remove the starter attaching bolts

and remove the starter from the con-

verter housing.

14.
On PEB and PEE models, lift

the fluid filler tube from the case.

15.
Remove the four converter-

to-flywheel attaching nuts.

16.
Position the transmission jack

to support the transmission and secure

the transmission to the jack with a

safety chain.

17.
Remove the four crossmember

attaching bolts and lower the

crossmember.

18.
Remove the five converter

housing-to-engine attaching bolts.

Lower the transmission (Fig. 21) and

remove it from under the vehicle.

TRANSMISSION

INSTALLATION

1.
With the converter properly in-

D 2043-A

FIG. 20—Converter Drain Plug

Location
FIG. 21—Transmission Mounted

on Jack
stalled, place the transmission on the

jack (Fig. 21). Secure the transmission

to the jack with the safety chain.

2.
Raise the transmission into posi-

tion and install the five converter

housing-to-engine attaching bolts.

Torque the bolts to specification. Re-

move the safety chain from the trans-

mission.

3.
Position the crossmember and

install the four attaching bolts. Torque

the bolts to specifications.

4.
Lower the transmission and in-

stall the extension housing and

crossmember attaching bolts. Torque

the bolts to specification.

5.
Install the four flywheel to con-

verter attaching nuts. Torque the nuts

to specification.

6. Remove the transmission jack.

Install the fluid filler tube in the

transmission case or pan. Install the

vacuum hose on the transmission vac-

uum unit. Install the vacuum line re-

taining clip.

7.
Connect the fluid cooling lines to

the transmission case.

8. On a Mustang, connect the neu-

tral start switch wires to their respec-

tive connectors and secure the harness

in the retaining clamps.

9. Install the linkage rods on the

transmission downshift and manual

control levers.

On vehicles equipped with a column

shift, use tool T67P-7341-A to install

a new grommet in the manual lever,

and to install the manual linkage rod

into the grommet.

10.
Connect the speedometer cable

to the extension housing.

11.
Connect the exhaust inlet pipes

to the manifolds.

12.
Install and adjust the parking

brake cable at the equalizer lever.

13.
Install the converter housing

cover and torque the attaching bolts

to specification.

14.
Install the starter and torque

the attaching bolts to specification.

Connect the starter cable.

15.
Install the drive shaft. Torque

the companion flange U-bolts attach-

ing nuts to specification.

16.
Lower the vehicle. Fill the

transmission to the proper level with

the specified fluid. Adjust the manual

and downshift linkage.procarmanuals.com

07-02-29

C4 Automatic Transmission

07-02-29

THRUST WASHER
NO. 9
PARKING GEAR

BOTTOM

OF CASE

FIG. 87—Number
9
Thrust

Washer Location

Tool-T65P-7B456-B

D1910-A

FIG. 88—Installing One-Way

Clutch Outer Race Attaching Bolts

REJURN
S
PAWL

PARKING

GEAR RETAINING
PIN
D1440-A

FIG. 89— Parking Pawl
and
Gear
THRUST

WASHER

NO.
10
D1911-A

FIG. 90—Number
10
Thrust

Washer Location

22.
On the
bench, install
the for-

ward clutch
in the
reverse-high clutch

by rotating
the
units
to
mesh
the

reverse-high clutch plates with
the

splines
of
the
forward clutch
(Fig. 95).

23.
Using
the end
play check read-

ing that
was
obtained during
the

transmission disassembly
to
determine

which
No.
2
steel backed thrustwasher

is required, proceed
as
follows:

a.
Position
the
stator support verti-

cally
on the
work bench
and
install

the correct
No. 2
thrustwasher
to

bring
the end
play within specifica-

tions.

RETAINS REVERSE RING GEAR
AND

HUB
TO
OUTPUT SHAFT

RETAINS GOVERNOR DISTRIBUTOR

TOOUTPUTSHAFT

D1549-A

FIG. 91—Governor
and
Reverse

Ring Hub-Retaining Snap Ring

Identification
b.
Install
the
reverse-high clutch

and
the
forward clutch
on the
stator

support.

c. Invert
the
complete unit making

sure that
the
intermediate brake drum

bushing
is
seated
on the
forward

clutch mating surface.

d.
Select
the
thickest fiber washer

(No.
1)
that
can be
inserted between

the stator support
and the
intermedi-

ate brake drum thrust surfaces
and

still maintain
a
slight clearance.
Do

not select
a
washer that must
be

forced between
the
stator support
and

intermediate brake drum.

e. Remove
the
intermediate brake

drum
and
forward clutch unit from

the stator support.

f.
Install
the
selected
Nos.
1 and 2

thrustwashers
on the
front pump
sta-

tor support
(Fig.
28)
using enough

vaseline
to
hold
the
thrust washers
in

position during
the
front pump instal-

lation.

24.
Install thrust washer
No.
3 on

the forward clutch
(Fig. 96).

25.
Install
the
forward clutch
hub

and ring
in the
forward clutch
by ro-

tating
the
units
to
mesh
the
forward

clutch plates with
the
splines
on the

forward clutch
hub (Fig. 97).

26.
Install thrust washer
No.
4 on

the front planet carrier
(Fig. 98).
In-

stall
the
front planet carrier into
the

forward clutch
hub and
ring gear.

Check
the
forward thrust bearing race

inside
the
planet carrier
for
proper

location against
the
thrust bearing.

Make sure
the
race
is
centered
for

alignment with
the sun
gear
on the

input shell
(Fig. 99).

27.
Install
the
input shell
and sun

gear
on
the
gear train
(Fig. 100). Ro-

tate
the
input shell
to
engage
the
drive

lugs
of the
reverse-high clutch.
If the

drive lugs will
not
engage,
the
outer

race inside
the
forward planet carrier

is
not
centered
to
engage
the end of

the
sun
gear inside
the
input shell.

Center
the
thrust bearing race
and
in-

stall
the
input shell.

28.
Hold
the
gear train together

and install
the
forward part
of the

gear train assembly
in the
case
(Fig.

33).

The input shell
sun
gear must mesh

with
the
reverse pinion gears.
The

front planet carrier internal splines

must mesh with
the
splines
on the out-

put shaft.

29.
A
new
band should
be
soaked

in transmission fluid
for
fifteen
min-

utes before
it is
installed. Install
the

intermediate band through
the
front
of

the case
(Fig. 31).

30.
Install
a
new
front pump gasket

on
the
case. Line
up
the
bolt holes
inprocarmanuals.com

07-03-02
FMX Transmission

07-03-02

COMPONENT INDEX

OIL PAN

Assembly

Removal and Installation

OUTPUT SHAFT

Assembly

Inspection

OUTPUT SHAFT BUSHING

Disassembly and Overhaul

PARKING PAWL

Removal and Installation

PRESSURE REGULATOR

Assembly

Disassembly and Overhaul

Inspection

Removal and Installation

PRIMARY SUN GEAR SHAFT

Disassembly and Overhaul

Inspection

REAR BRAKE DRUM SUPPORT BUSHING

Disassembly and Overhaul

REAR CLUTCH

Assembly

Disassembly and Overhaul

Inspection
Page
03-29

03-11

03-26

01-11

03-17

03-13

03-28

03-21

01-16

03-12

03-18

01-11

03-17

03-26

03-18

01-15
REAR SERVO

Assembly

Disassembly and Overhaul

Inspection

Removal and Installation

REAR SUPPORT

Assembly

Inspection

REAR SUPPORT BUSHING

Disassembly and Overhaul

SELECTOR LEVER-CONSOLE SHIFT

Removal and Installation

THROTTLE LINKAGE

Adjustment

Parts Repair or Replacement

TRANSMISSION (Complete)

Removal and Installation

TRANSMISSION CASE BUSHING

Parts Repair or Replacement

TRANSMISSION CASE LINKAGE

Parts Repair or Replacement

VACUUM DIAPHRAGM UNIT

Assembly

Adjustment

Checking
Page
03-28

03-24

01-16

03-12

03-28

03-15

03-21

03-08

03-05

03-05

03-14

03-26

03-25

03-29

01-07

01-04

DESCRIPTION

DESCRIPTION

Figure 1 shows the location of the

converter, front pump, clutches,

bands,
gear train and most of the in-

ternal parts used in the FMX Trans-

mission

The identification tag (Fig. 2) on an

FMX transmission is attached under

the oil pan by a pan to case bolt. The

tag includes the model prefix and suf-
fix, assembly part number and the

build date code.

The service identification number

indicates changes to service details

which affect interchangeability when

the transmission model is not

changed. For interpretation of this

number, see the Master Parts Catal-

og-

The tag must be kept with the indi-

vidual transmission it was originally
installed on. If the tag was removed

during disassembly, reinstall it on the

same unit.

The FMX transmission is a three

speed unit capable of providing auto-

matic upshifts and downshifts through

the three forward gear ratios, and also

capable of providing manual selection

of first and second gears.

The transmission consists essentially

of a torque converter, planetary gear

train, two multiple disc clutches and a

hydraulic control system (Fig. 3).
procarmanuals.com

07-03-11
FMX Transmission

07
03-11

GOVERNOR
COMPENSATOR

PRESSURE TUBE
MAIN CONTROL

VALVE TUBE

COUNTERWEIGHT

D 1815-A

FIG. 16—Governor Installed

ber to remove all weight from the

housing.

10.
Loosen the parking brake cable

adjustment nut enough to disconnect

the cables from the equalizer.

11.
Remove the extension housing

attaching bolts. Slide the housing off

the output shaft and remove the gas-

ket. When removing
the
extension

housing and/or governor, hold
the

output shaft
and
rear support from

moving rearward
to
prevent
the
needle

bearing
and
race from dropping
out of

location.

12.
Remove the governor to coun-

terweight attaching screws. Lift the

governor from the counterweight (Fig.

16).

13.
Lubricate the governor valve

parts with clean transmission fluid.

Make certain that
the
valve moves

freely
in the
valve body bore.

14.
Position the governor valve

body on the counterweight with the

cover facing toward the front of the

vehicle. Install and tighten the two at-

taching screws to the specified torque.

15.
Position a new extension hous-

ing gasket on the rear of the transmis-

sion case.

16.
Slide the extension housing into

place and secure it to the transmission

case with the attaching bolts. Torque

the bolts to specification. With the ex-

tension housing installed, rotate
the

output shaft.
The
shaft must rotate

freely
by
hand.
If the
shaft
is
tight
or

bound
up, it is
likely that
the
needle

bearing
and
race have dropped
out of

location,
in
which case,
the
transmis-

sion must
be
partially disassembled

and
the
bearing
and
race repositioned.

17.
Connect the speedometer cable

to the extension housing.

18.
Raise the transmission high

enough with a jack to position the en-
FRONT SERVO

FLUID TUBES

PRESSURE

REGULATOR

D 1817-A

FIG. 17—Typical Hydraulic Control System

gine rear support on the crossmember.

Secure the support to the crossmem-

ber with attaching bolt.

19.
Lower the transmission and re-

move the jack. Secure the extension

housing to the rear support with the

two attaching bolts.

20.
Connect the parking brake

cables to the equalizer and adjust the

cables as required.

21.
Install the driveshaft.

22.
Fill the transmission to the cor-

rect level with the specified fluid.

OIL
PAN AND
CONTROL

VALVE BODY REPLACEMENT

1. Raise the vehicle so that the

transmission fluid pan is accessible.

2.
Drain the fluid from the trans-

mission by loosening the pan attach-

ing bolts starting at the rear of the

pan and working toward the front.

When most of the fluid has drained

from the pan, remove the remainder

of the attaching bolts. Remove the

pan and gasket. Discard the gasket. If

the same fluid is to be used again in

the transmission, filter the fluid

through a 100-mesh screen before in-

stalling it in the transmission. Re-use

the fluid only if it is in good condi-

tion.
3.
Disconnect the hose from the

vacuum diaphragm unit. Remove the

diaphragm unit using tool FCO-24.

Do
not use any
tools
on the dia-

phragm housing, such
as
pliers, pipe

wrenches,
etc. Do not
allow solvents

to enter
the
diaphragm unit. Remove

the push rod. Remove the fluid screen

retaining clip and the screen.

4.
Remove the fluid filter retaining

clip and the filter.

5.
Remove the two tubes which

connect to the pressure regulator and

the control valve body (Fig. 17).

6. Loosen the front servo attaching

bolts three turns.

7.
Remove the three control valve

body attaching bolts, and lower the

valve body while pulling it off the

front servo tubes. Be carefull not to

damage
the
valve body
or the
tubes.

8.
Before installing the control

valve body, check for a bent manual

valve by rolling it on a flat surface.

9. Install the control valve body by

aligning the front servo tubes with the

holes in the valve body. Shift the man-

ual lever to the 1 detent, and place the

inner downshift lever between the

downshift lever stop and the downshift

valve.
The
manual valve must engage

the actuating
pin in the
manual detent

lever.

10.
Install but do not tighten, the

control valve body attaching bolts.procarmanuals.com

07-03-13
FMX Transmission

07-03-13

EXTENSION HOUSING

BUSHING AND REAR SEAL

REPLACEMENT

1.
Disconnect the drive shaft from

the transmission.

2.
Carefully remove the seal with

the tools shown in Fig. 18.

3.
Remove the bushing as shown in

Fig. 19. Use the bushing remover

carefully so that the spline seal is not

damaged.

4.
When installing a new bushing

use the special tool shown in Fig. 20.

5.
Before installing a new seal, in-

spect the sealing surface of the univer-

sal joint yoke for scores. If scores are

found, replace the yoke.

6. Inspect the counterbore of the

housing for burrs. Polish off all burrs

with crocus cloth.

7.
Install the seal into the housing

with tool shown in Fig. 21. The seal

should be firmly seated in the bore.

PARKING PAWL

REPLACEMENT

1.
On Ford and Meteor vehicles,

loosen the right front scuff plate and

lift the carpet back until the rear band

adjusting stud access hole is accessi-

ble.

Remove the access hole plug and,

with Tool 7195-C or Tool T58L-

7195-A, loosen the adjusting stud lock

nut. Turn the adjusting stud in until

the tool handle overruns. This will

tighten the rear band around the plan-

et carrier and will hold the planet car-

rier and clutch assemblies in position

during the parking pawl repair opera-

tion.

2.
Raise the vehicle and drain the

fluid from the transmission.

3.
Place the adjustable support

stand under the rear of the engine.

4.
Remove the driveshaft.

5.
Disconnect the parking brake

cables from the crossmember and

equalizer bracket.

6. Remove the engine rear

support-to-extension housing bolts.

7.
Remove the bolt that secures the

engine rear support to the crossmemb-

er. Raise the engine with the adjusta-

ble support stand just high enough to

provide clearance for removing the

support.

8. Lower the jack until the exten-

sion housing just clears the crossmem-

ber to remove all weight from the

housing.

9. Disconnect the speedometer

cable from the transmission.

10.
Remove the transmission pan

and fluid filter.

11.
On a Fairlane, Montego,

Mustang or Cougar, loosen the rear
EXTENSION HOUSING

Tool-T57P-7697-A

or 7000-G or AD

D1O25-B

FIG. 79—Removing Extension

Housing Bushing

BUSHING

Tool—T57P-7697-B

7000-HF

EXTENSION HOUSING

D1O26-B

FIG. 20—Installing Extension

Housing Bushing

band adjusting screw lock nut and

tighten the adjusting screw to 24 in-lbs

torque. This will tighten the rear band

around the planet carrier and will hold

the planet carrier and clutch assem-

blies in position during the parking

pawl repair operation.

12.
Remove the vacuum control di-

aphragm unit and control rod.

13.
Remove the main control valve

rear support assembly from the case.

14.
Remove the extension housing

attaching bolts and housing.

15.
Remove the output shaft and

assembly retaining bolts and valve as-

sembly.

16.
Remove the parking pawl pin

from the case with a magnet.

17.
Working from inside of the

case,
drive on the shoulder of the tog-

gle lever (Fig. 52) pin with a small

punch to move the retaining plug part

way out of the case. Remove the plug

with a pair of pliers.

18.
To remove the toggle lever pin,

slide the toggle lever toward tlfe front

of the case. Cock the lever to one side

to apply pressure on the pin, then
move the toggle to the rear of the case

to move the pin outward. Repeat this

procedure until the pin can be re-

moved from the case. Lift the pawl

and toggle from the case as an assem-

bly.

19.
Remove the pawl and toggle

lever as an assembly.

20.
Position the new parking pawl

and link assembly, then install the

toggle lever pin and the plug.

21.
Secure the pawl to the case

with the pawl pin.

22.
Position a new gasket on the

front of the support and at the rear.

Hold them in place with transmission

fluid or vaseline.

23.
Make sure that the thrust wash-

er is in place, then position the sup-

port and output shaft in place making

sure that the pressure tubes are en-

tered in the case.

24.
Secure the extension housing to

the case with the attaching bolts.

25.
Install the main control valve

assembly.

26.
Adjust the front band.

27.
Adjust the rear band on a Fair-

lane,
Montego, Mustang or Cougar.

28.
Position the vacuum control rod

in the case. Install the vacuum dia-

phragm unit.

29.
Install the filter, transmission

pan and a new gasket.

30.
Connect the speedometer cable

to the extension housing.

31.
Raise the transmission high

enough to position the engine rear

support on the crossmember. Secure

the support with the attaching bolt.

32.
Lower the transmission and re-

move the jack. Install the two exten-

sion housing-to-engine rear support

attaching bolts.

33.
Connect the parking brake

cables to the equalizer.

34.
Install the driveshaft, then

lower the vehicle.

35.
On Ford and Meteor vehicles,

adjust the rear band.

36.
Fill the transmission to the cor-

rect level with the specified fluid.

Too/—
T6U-7657-A or 8,

7657-AA, or 7657 AB

EXTENSION HOUSING

REAR SEAL

FIG. 21—Installing Extension Housing Sealprocarmanuals.com

07-04-11
C-6 Automatic Transmission

07-04-11

BAND ADJUSTMENT

INTERMEDIATE BAND

1.
Raise the vehicle on a hoist or

jack stands.

2.
Clean all the dirt from the band

adjusting screw area. Remove and dis-

card the lock nut.

3.
Install a new lock nut and tight-

en the adjusting screw to 10 ft-lbs tor-

que (Fig. 15).

4.
Back off the adjusting screw ex-

actly 1 full turn.

5.
Hold the adjusting screw from

turning and torque the lock nut to

specification.

6. Lower the vehicle.

EXTENSION HOUSING OR

GOVERNOR REPLACEMENT

REMOVAL

1.
Raise the vehicle on a hoist or

stands.

2.
Disconnect the parking brake

cable from the equalizer. On a Lin-

coln Continental, remove the equaliz-

er.

3.
Disconnect the driveshaft from

the rear axle flange and remove it

from the transmission.

4.
Disconnect the speedometer

cable from the extension housing.

5.
Remove the engine rear

support-to-extension housing attaching

bolts.

On a Lincoln Continental, remove

the reinforcement plate from under

the transmission oil pan.

6. Place a jack under the transmis-

sion and raise it just enough to re-

move the weight from the engine rear

support.

7.
Remove the bolt that secures the

engine rear support to the crossmemb-

er and remove the support.

8. Place a drain pan under the rear

of the transmission case.

9. Lower the transmission and re-

move the extension housing attaching

bolts.
Slide the extension housing off

the output shaft and allow the fluid to

drain.

10.
Remove the governor attaching

bolts (Fig. 16) and remove the gover-

nor from the flange.

INSTALLATION

1.
Secure the governor (Fig. 16) to

the distributor flange with the attach-

ing bolts. Torque the bolts to specifi-

cation.
TOOL-T59 P-77370-B

FIG. 75—Adjusting Band
D 1597-A

TUBES

DISTRIBUTOR

GOVERNOR

SPACER

D1598-A

FIG. 76—Governor Installed

2.
Clean the mounting surface on

the transmission and on the extension

housing. Position a new gasket on the

transmission.

3.
Hold the extension housing in

place and secure it with the attaching

bolts.

4.
Raise the transmission high

enough to position the engine rear

support on the crossmember.

5.
Secure the support to the cross

member with the attaching bolt and

nut. Torque the bolt to specification.

6. Lower the transmission and re-

move the jack. Install and torque the

engine rear support-to-extension hous-

ing attaching bolts to specification.

On a Lincoln Continental, install

the reinforcement plate and secure it

with the attaching bolts.

7.
Secure the speedometer cable to

the extension housing with the attach-

ing bolt.

8. Connect the parking brake cable

to the equalizer. On a Lincoln Conti-
nental, connect the parking brake

equalizer. Adjust the parking brake as

required.

9. Install the drive shaft.

10.
Fill the transmission to the cor-

rect level with the specified fluid.

SERVO REPLACEMENT

ALL VEHICLES EXCEPT

LINCOLN CONTINENTAL

Removal

1.
Raise the vehicle on a hoist or

stands.

2.
Remove the engine rear

support-to-extension housing attaching

bolts.

3.
Raise the transmission high

enough to remove the weight from the

engine rear support.

4.
Remove the bolt that secures the

engine rear support to the crossmemb-

er. Remove the support.

5.
Lower the transmission and re-

move the jack.

6. Place a drain pan beneath the

servo.
Remove the bolts that attach

the servo cover to the transmission

case.

7.
Remove the cover, piston, spring

and gasket from the case, screwing the

band adjusting screw inwards as the

piston is removed. This insures that

there will be enough tension on the

band to keep the struts properly en-

gaged in the band end notches while

the piston is removed.

SEAL REPLACEMENT

1.
Apply air pressure to the port in

the servo cover to remove the piston

and rod.

2.
Remove the seals from the piston

(Fig. 17).

On a Continental Mark III, replace

the complete piston and rod assembly

if the piston or piston sealing lips are

unserviceable or damaged.

3.
Remove the seal from the cover.

4.
Dip the new seals in transmission

fluid.

5.
Install the new seals on the pis-

ton and cover.

6. Coat two new gaskets with pe-

troleum jelly and install the gaskets

on the cover.

7.
Dip the piston in transmission

fluid and install it in the cover.procarmanuals.com