lock FORD MUSTANG 1969 Volume One Chassis

07-04-17
C-6 Automatic Transmission
07-04-17

9. Raise the transmission and in-

stall the engine rear support and tor-

que the bolts to specification.

10.
Lower the transmission and re-

move the jack.

11.
Install the engine rear support-

to-extension housing attaching bolts.

12.
Install the drive shaft.

13.
Connect the speedometer cable

to the extension housing.

14.
Connect the muffler inlet pipes

to the exhaust manifolds.

15.
Position the starting motor on

the converter housing and secure it

with the attaching bolts. Connect the

cable to the terminal on the starter.

16.
Position the idler arm bracket

to the frame side rail and install the

attaching bolts.

17.
Install the torque converter-

to-flywheel attaching nuts and torque

them to specification.

18.
Install the converter housing

dust shield.

19.
Secure the frame side rail sup-

port brace with the attaching bolts

and lock washers. Torque the bolts to

specification.

20.
Connect the downshift rod to

the transmission downshift lever.

21.
Using Tool T67P-7341-A, in-

stall a new grommet in the manual

lever. Then, secure the manual selec-

tor rod to the lever.

22.
Connect the vacuum hose to the

vacuum diaphragm.

23.
Install the oil cooler line retain-

ing clip at the transmission support.

24.
Position the vibration absorber

to the transmission extension housing

and secure it with the three attaching

bolts.

25.
Lower the vehicle.

26.
Fill the transmission to the

proper level with the specified fluids.

27.
Adjust the manual and throttle

linkage as required.

REMOVAL-

LINCOLN CONTINENTAL

1.
Raise the hood and remove the

transmission dipstick.

2.
Raise the vehicle on a hoist. Re-

move the bolt that secures the trans-

mission filler tube to the cylinder

head.

3.
Remove the bolts that attach the

reinforcement plate at the rear of the

transmission oil pan and remove the

plate.

4.
Remove the three bolts that at-

tach the manual and downshift control

rod splash shield to the side rail and

remove the shield.
5.
Place a drain pan under the

transmission. Loosen all transmission

pan attaching bolts and allow the fluid

to drain. Remove the bolts from the

rear and both sides of the pan to

allow further drainage; then, finally

remove the pan. After all fluid has

been drained, install the pan using

four attaching bolts.

6. Remove the two bolts that attach

the cover to the lower end of the con-

verter housing.

7.
Remove the two front support

bracket bolts at the converter housing.

8. Remove the two drain plugs

from the converter and allow it to

drain.

9. Remove the four nuts that attach

the converter to the flywheel.

10.
Lift the fluid filler tube from

the transmission case.

11.
Remove the two idler arm

bracket bolts from the frame side rail

and allow the idler arm to hang free.

12.
Disconnect the starter cable

from the starter. Remove the starter

attaching bolts and remove the starter.

13.
Disconnect the oil cooler lines

from the transmission.

14.
Disconnect the vacuum hose

from the diaphragm.

15.
Loosen the parking brake ad-

justing nut at the equalizer and re-

move the retracting spring. Disconnect

the rear brake cables and remove the

equalizer from the bracket.

16.
Disconnect the speedometer

cable from the extension housing.

17.
Disconnect the drive shaft from

the transmission flange and position

the shaft out of the way.

18.
Disconnect the downshift rod

from the transmission downshift lever.

19.
Using tool T67P-7341-A, re-

move the manual selector rod from

the manual lever.

20.
Remove the lower bellcrank at-

taching bolts and remove the bell-

crank.

21.
Pry the upper bellcrank out of

the converter housing and allow it to

hang free.

22.
Remove the cooler lines from

the clip at the cylinder head.

23.
Remove the converter housing-

to-cylinder block lower attaching

bolts.

24.
Remove the two nuts that at-

tach the engine rear mounts to the

crossmember.

25.
Place a transmission jack under

the transmission and raise it just high

enough to remove the weight from the

crossmember.

26.
Remove the engine rear

support-to-extension housing attaching

bolts and remove the supports.
27.
Remove the crossmember-

to-frame attaching nuts and remove

the crossmember.

28.
Secure the transmission to the

jack with the safety chain. Lower the

transmission and remove the upper

converter housing-to-cylinder block at-

taching bolts.

29.
Move the transmission away

from the cylinder block.

30.
Carefully lower the transmis-

sion and remove it from under the ve-

hicle.

31.
Remove the converter and mount

the transmission in a holding fixture.

INSTALLATION-

LINCOLN CONTINENTAL

1.
Torque the two converter drain

plugs to specification.

2.
Install the converter on the sta-

tor support.

3.
Secure the transmission on a

transmission jack.

4.
Rotate the converter so that the

studs and drain plugs are in alignment

with those in the flywheel.

5.
Move the transmission toward the

cylinder block until they contact each

other. Install and torque the attaching

bolts to specification.

6. Secure the converter to the fly-

wheel with the four attaching nuts.

Torque the nuts to specification.

7.
Secure the converter access cover

to the converter housing with the at-

taching bolts.

8. Secure the two front support

brackets to the converter housing with

the attaching bolts.

9. Raise the transmission high en-

ough to position the crossmember. In-

stall the bolts, but do not tighten at

this time.

10.
Secure the engine rear support

to the extension housing and torque

the bolts to specification. At this time,

install and torque the crossmember-

to-frame attaching nuts to specifica-

tion.

11.
Lower the transmission and in-

stall the engine rear support-

to-crossmember attaching nuts and

plates.
Torque the •"its to specifica-

tion. Remove the transmission jack.

12.
Install the upper bellcrank in

the left side of the converter housing.

13.
Position the lower bellcrank to

the transmission and floor pan and se-

cure it with the two attaching bolts.

14.
Connect the downshift rod to

transmission downshift lever.

15.
Using tool T67P-7341-A, install

a new grommet in the manual lever.

Then, secure the manual selector rod

to the lever.procarmanuals.com

07-04-18
C-6 Automatic Transmission
07-04-18

16.
Position the manual and down-

shift control rod splash shield to the

frame side rail and secure it with the

attaching bolts.

17.
Connect the speedometer cable

to the extension housing.

18.
Connect the vacuum hose to the

vacuum diaphragm and secure with a

clamp.

19.
Connect the two oil cooler lines

to the fittings on the right side of the

case.
20.
Install the cooler lines under

the clip at the cylinder head.

21.
Position the reinforcement plate

and torque the attaching bolts.

22.
Install the equalizer and park-

ing brake cables. Install the equalizer

lever retracting spring.

23.
Install the drive shaft.

24.
Install a new seal on the filler

tube and install it in the transmission

case.
Secure the filler tube to the cyl-

inder head.
25.
Install the starting motor and

connect the cable.

26.
Install the idler arm bracket-

to-frame side rail.

27.
Lower the vehicle.

28.
Fill the transmission to the cor-

rect level with the specified fluid.

29.
Adjust the manual and throttle

linkage as required.

MAJOR REPAIR OPERATIONS

DISASSEMBLY OF

TRANSMISSION

1.
Mount the transmission in hold-

ing fixture T64L-6001-A (Fig. 22).

2.
Remove the 17 fluid pan attach-

ing bolts. Remove pan and gasket.

3.
Remove the 8 valve body attach-

ing bolts (Fig. 23). Lift the valve body

from the transmission case.

4.
Attach a dial indicator to the

front pump as shown in Fig. 24. In-

stall tool T61L-7657-B in the exten-

sion housing to center the shaft.

5.
Pry the gear train to the rear of

the case and at the same time, press

the input shaft inward until it bottoms

(Fig. 24). Set the dial indicator to

read zero.

6. Pry the gear train forward (Fig.

24) and note the amount of gear train

end play on the dial indicator. Record

the end play to facilitate assembling

the transmission. Remove the dial in-

dicator from the pump and the tool

from the extension housing.

7.
Remove the vacuum diaphragm,

rod and the primary throttle valve

from the case. Slip the input shaft out

of the front pump.

8. Remove the front pump attach-

ing bolts. Pry the gear train forward

as shown in Fig. 25 to remove the

pump.

9. Loosen the band adjustment

screw and remove the two struts.

10.
Rotate the band 90 degrees co-

unterclockwise to align the ends with

the slot in the case (Fig. 26). Slide the

band off the reverse-high clutch drum.

11.
Remove the forward part of the

gear train as an assembly as shown in

Fig. 27.

12.
Remove the large snap ring that

secures the reverse planet carrier in

the low-reverse clutch hub. Lift the

planet carrier from the drum.

13.
Remove the snap ring (Fig. 28)

that secures the reverse ring gear and
D16Q3-B

FIG. 22—Transmission Mounted in Holding Fixture

hub on the output shaft. Slide the ring

gear and hub off the shaft.

14.
Rotate the low-reverse clutch

hub in a clockwise direction and at

the same time, withdraw it from the

case.

15.
Remove the reverse clutch snap

ring from the case, then remove the

clutch discs, plates and pressure plate

from the case.

16.
Remove the extension housing

attaching bolts and vent tube from the

case.
Remove the extension housing,

and gasket.

17.
Slide the output shaft assembly

from the transmission case.
18.
Remove the distributor sleeve

attaching bolts and remove the sleeve,

parking pawl gear and the thrust

washer.

If the thrust washer is staked in

place, use a sharp chisel and cut off

the metal from behind the thrust

washer. Be sure to clean the rear of

the case with air pressure or a suitable

solvent to remove any metal particles.

19.
Compress the reverse clutch pis-

ton release spring with tool T65P-

77515-A (Fig. 29). Remove the snap

ring. Remove the tool and the spring

retainer.procarmanuals.com

07-04-20

C-6 Automatic Transmission

07-04-20

SNAP RING

LOW-REVERSE

CLUTCH PISTON

Tool -

T6SL-77515-A
RETAINER Toof - T65L- 77575- A

D1610-A

FIG. 29—Compressing Reverse Clutch Spring

AIR NOZZLE

Tool- 7000- DD

LOW- REVERSE CLUTCH

APPLY PASSAGE

D1611-A

FIG. 30—Removing Low-Reverse

Clutch Piston
20.
Remove the one-way clutch

inner race attaching bolts from the

rear of the case. Remove the inner

race from inside of the case.

21.
Remove the reverse clutch pis-

ton from the case as shown in Fig. 30.

PARTS REPAIR OR

REPLACEMENT

During the repair of the sub-

assemblies, certain general instructions

which apply to all units of the trans-

mission must be followed. Following

these instructions will avoid unneces-

sary repetition.

OUTER

MANUAL LEVER

AND SHAFT

PARKING

PAWL ACTUATING

ROD

D1612-A

FIG. 31—Downshift and Manual Linkage

7"oo/ - 77288

D1613-A

FIG. 32—Installing Manual Lever

Seal
All transmission parts must be

handled carefully to avoid nicking or

burring the bearing or mating surfa-

ces.

Lubricate all internal parts of the

transmission with clean automatic

transmission fluid before assembling

them.

Do not use any other lubricants ex-

cept on gaskets and thrust washers.

These may be coated with vaseline to

facilitate assembly. Always use new

gaskets and seals when assembling a

transmission.
Tighten all bolts and screws to the

recommended torque as outlined in

the Specification Section.

TRANSMISSION CASE

AND LINKAGE

Downshift and Manual

Linkage

1.
Remove the nut and lock washer

that secures the outer downshift lever

to the transmission and remove the

lever.

2.
On a Mustang or Cougar, re-

move the two bolts that secure the

neutral safety switch to the case. In-

sert a screwdriver between the switch

and case as close as possible to the

shaft. Gently pry the switch from the

case.

3.
Slide the downshift lever out

from the inside-of the case (Fig. 31).

Remove the seal from the recess in

the manual lever shaft.

4.
Remove the C-ring that secures

the parking pawl actuating rod to the

manual lever. Remove the rod from

the case.

5.
Remove the nut that secures the

inner manual lever to the shaft. Re-

move the inner lever from the shaft.

Slide the outer lever and shaft from

the case.

6. Remove the seal from the case

with Tools T59L-1OO-B and T58L-

101-A or 7600-E.

7.
Dip the new seal in transmission

fluid and install it in the case as

shown in Fig. 32.

8. Slide the outer manual lever and

shaft in the transmission case.

9. Position the inner lever on the

shaft and install the attaching nut.

Tighten the nut to specification. In-

stall the parking pawl actuating rod

and secure it to the inner manual lever

with a C-washer.

10.
Install a new downshift lever

seal in the recess of the outer lever

shaft. Slide the downshift lever and

shaft into position.

11.
On a Mustang or Cougar, posi-

tion the neutral switch on the manual

lever and secure it with the two at-

taching bolts. Leave the attaching

bolts loose to adjust the switch after

installing the control valve.

12.
Place the outer downshift lever

on the shaft and secure it with a lock

washer and nut.procarmanuals.com

07-04-21

C-6 Automatic Transmission
07-04-21

Parking Pawl Linkage

1.
Remove the bolts that secure the

parking pawl guide plate to the case

(Fig. 33). Remove the plate.

2.
Remove the spring, parking pawl

and shaft from the case.

3.
Working from the pan mounting

surface, drill a 1/8 inch diameter hole

through the center of the cupped plug.

Pull the plug from the case with a

wire hook.

4.
Lift the end of the spring off the

park plate pin to relieve the tension.

5.
Thread a
1/4-20
inch or # 8-32

x 1 1/4 inch screw (Fig. 34) into the

par1: plate shaft. Pull the shaft from

the case with the screw.

6. Position the spring and park

plate in the case and install the shaft.

Hook the end of the spring over the

pin on the park plate.

7.
Install a new cupped washer

(Fig. 33) to retain the shaft.

8. Install the parking pawl shaft in

the case. Slip the parking pawl and

spring into place on the shaft.

9. Position the guide plate on the

case making sure that the actuating

rod is seated in the slot of the plate.

Secure the plate with two bolts and

lock washers.

Servo Apply Lever

1.
Working from inside of the

transmission case, carefully drive on

the servo apply lever shaft to remove

the cup plug. The shaft (Fig. 35) can

be withdrawn from the case by hand.

2.
Hold the servo apply lever in

position and install the new shaft.

3.
Using the fabricated tool shown

in Fig. 35, drive the cup plug into

position in the case. Be sure the plug

is flush with the shoulder of the count-

erbore. The cup plug may be coated

with Loctite, Part No. C3AZ-

19554-A, before installation.

Thread Repair-Case

Thread service kits may be pur-

chased from local jobbers or the

Heli-Coil Corporation. To repair a

damaged thread, the following proce-

dures should be carefully followed:

1.
Drill out the damaged threads

using the same size threads as the

thread OD. For example, use a 5/16-

inch drill when repairing a 5/16-18

inch thread.

2.
Select the proper special tap and

tap the drilled hole. The tap is marked

for the size of the thread being re-
GUIDE PLATE PIN SPRING CUPPED PLUG

PARKING

GEAR

SHAFT

SPRING

PARKING PAWL
PARK PLATE

D1614-A

FIG. 33—Parking Pawl Mechanism

1/4 - 20 x
1
1/4 INCH BOLT

OR #8 • 32 x 1 1/4 INCH BOLT
INSTALL CUP PLUG FLUSH WITH

SHOULDER OF COUNTERBORE

PARK PLATE

SHAFT

D 1629-B

FIG. 34—Removing Park Plate

Shaft

paired. Thus, the special tap supplied

with the repair kit marked 5/16-18

will not cut the same thread as a

standard 5/16-inch tap. It will cut a

thread large enough to accommodate

the insert, and after the insert is in-

stalled, the original thread size (5/16-

18 inch) is restored.

3.
Select the proper coil inserting

tool. These tools are marked with the

thread size being repaired. Place the

insert on the tool and adjust the sleeve

to the length of the insert being used.
INSTALLING TOOL

MAKE FROM 1/2" DIA. DRILL ROD

D 1783-A

FIG. 35—Servo Apply Lever

Installation

Press the insert against the face of

the tapped hole. Turn the tool clock-

wise and wind the insert into the hole

until the insert is one half turn below

the face.

4.
Working through the insert, bend

the insert tang straight up and down

until it breaks off at the notch.

5.
If the inserts are not properly in-

stalled, they can be removed with the

extractor tool. Place the extractor tool

in the insert so that the blade rests

against the top coil
1/4-1/2
turn awayprocarmanuals.com

07-04-22

C-6 Automatic Transmission
07-04-22

LOWER VALVE

BODY

7A101
UPPER VALVE

BODY

7A092

PLATE

7C056

PLATE

7D259

FIG. 36—Upper and Lower Valve Bodies Disassembled

Tool - T64P.7A128-A

ROLL PIN

D 1617-A

FIG. 37—Removing Manual Valve

from the end of the coil. Tap the tool

sharply with a hammer so that the

blade cuts into the insert. Exert down-

ward pressure on the tool and turn it

counterclockwise until the insert is re-

moved.

CONTROL VALVE BODY

Disassembly

1.
Remove the nine screws that at-

tach the screen to the lower valve

body and remove the screen and gas-

ket (Fig. 36).

2.
Remove the twelve screws and

the 2 plates that attach the two valve

bodies.

3.
Separate the bodies and remove

the separator plate and gasket. Be

careful not to lose the check valves

and springs.

4.
Depress the manual valve detent

spring with the tool shown in Fig. 37.
Remove the retaining pin from the

upper valve body. Remove the spring

and detent plunger.

5.
Slide the manual valve (Fig. 38)

out of the valve body.

6. Cover the downshift valve port

with a finger, then working from the

underside of the body remove the

downshift valve retainer. Remove the

spring and downshift valve.

7.
Apply pressure on the pressure

booster valve retaining plate and re-

move the two attaching screws. Slowly

release the pressure and remove the

plate, sleeve and the pressure booster

valve. Remove the two springs and the

main regulator valve from the same

bore.

8. Apply pressure on the throttle

booster valve retaining plate and re-

move the two attaching screws. Slowly

release the pressure and remove plate,

throttle booster valve and spring, and

the manual low 2-1 scheduling valve

and spring from the body.

9. Apply pressure on the remaining

valve retaining plate and remove the

eight attaching screws.

10.
Hold the valve body so that the

plate is facing upward. Slowly release

the pressure and remove the plate.

11.
When removing the various

valves from the control valve body,

keep all ports covered with your fin-

gers except the bore the valve is being

removed from. Remove the spring and

the intermediate servo modulator valve

(Fig. 38) from the valve body.

12.
Remove the intermediate servo

accumulator valve and springs.

13.
Remove the 2-3 back-out valve,

and spring.

14.
Remove the 2-3 shift valve,

spring and the throttle modulator

valve.
D1616-A

15.
Remove the 1-2 shift valve, D2

shift valve and the spring from the

valve body.

16.
Remove the coasting regulator

valve from the body.

17.
Remove the cutback control

valve.

18.
Remove the 3-2 shift timing

valve retainer and remove the plug.

Remove the 3-2 shift timing valve and

spring to complete the disassembly of

the control valve. Do not remove the

3-2 shift timing valve plug if it is

found to be peened, preventing the re-

moval of the plug and the 3-2 shift

timing valve. This condition will not

affect transmission operation and is

not cause for replacement of the main

control. The 3-2 shift timing valve is

non-functional and removal of the

plug, 3-2 shift timing valve and spring

is not required.

Assembly

1.
Place the spring 3-2 shift timing

valve and plug in the valve body if

they were previously removed. Install

the plug retainer.

2.
Place the downshift valve and

spring in the valve body. Compress

the spring and install the retainer

from the underside of the body.

3.
Place the valve body on a clean

surface and the passage side facing up.

Place the converter relief valve spring

in its bore (Fig. 39). Coat the convert-

er relief valve check valve with vase-

line and place it on top of the spring.

Place the 2-3 shift check valve ball in

its cavity. Place the throttle pressure

relief valve spring in its bore (Fig. 39).

Coat the throttle pressure relief valve

check ball with vaseline and place it

on top of the spring.procarmanuals.com

07-04-24

C-6 Automatic Transmission

07-04-24

CONVERTER PRESSURE RELIEF VALVE

THROTTLE PRESSURE

RELIEF BALL1/4 INCH

DIA. AND SPRING

CONVERTER

PRESSURE

RELIEF

SPRING

2-3 SHIFT

CHECK VALVE

D 1765-C

FIG. 39—Converter Pressure Relief Valve, Throttle Pressure Relief Valve,

and
2-3
Shift Check Valve Locations

FRONT PUMP

Tool
-
7775-AS

Tool -
T50T-
100-A

or 73-760

Tool
-T63L- 77837 -A

D 1636 -A

FIG. 40—Removing Front Pump

Seal

4.
Carefully position
the
separator

plate,
new
gasket
and the
lower valve

body
on the
upper valve body
and in-

stall
and
torque
the
attaching bolts
to

specification.

5.
Secure
the
screen
to the
lower

valve body with
the
attaching bolts

and torque them
to
specification.

6. Place
the
cutback control valve

(Fig.
38) in the
valve body.

7.
Place
the
coasting regulator

valve
in the
body.

8. Place
the
spring
D2
shift valve

and
the 1-2
shift valve
in the
body.

9. Place
the
throttle modulator

valve
and
spring
and the 2-3
shift

valve
in the
valve body.
D 1637-A

FIG. 41—Installing Front Pump

Seal

10.
Place
the
spring
and the 2-3

backout valve
in the
valve body.

11.
Place
the two
springs
and the

intermediate servo accumulator valve

in
the
valve body.

12.
Place
the
intermediate servo

modulator valve
and
spring
in the

body.

13.
Carefully place
the
valve retain-

ing plate
on the
body
and
secure
it

with
the
eight attaching screws. Tigh-

ten
the
screws
to
specification.

14.
Place
the
throttle booster valve

and spring
in the
valve body. Place

the manual
low 2-1
scheduling valve

and spring
in the
valve body
and in-
stall
the
retaining plate. Torque
the

attaching screws
to
specification.

15.
Place
the
main regulator,
two

springs, pressure booster valve
and the

sleeve
in the
valve body.

16.
Install
the
pressure booster

plate
and
torque
the two
attaching

screws
to
specification.

17.
Place
the
manual valve
in the

valve body
and
install
the
detent plug,

spring
and the
retaining
pin in the

body.

FRONT PUMP

The front seal
can be
replaced after

the pump
has
been installed
on the

transmission (Figs.
40 and 41).

Disassembly

1.
Remove
the two
seal-rings
and

the selective thrust washer (Fig.
42).

2.
Remove
the
large square-cut seal

from
the
O.D.
of the
pump housing.

3.
Remove
the 5
bolts that secure

the pump support
to the
pump hous-

ing. Lift
the
support from
the
housing.

4.
Remove
the
drive
and the
driven

gear from
the
housing.

Assembly

1.
Install
the
drive
and
driven gears

in
the
pump housing. Each gear
has

an identification mark
on one
face.

The identification mark
on
each gear

must
be
toward
the
front
of the
pump

housing.

2.
Position
the
pump support
in the

pump housing
and
install
and
torque

the five attaching bolts
to
specifica-

tion.

3.
Carefully install
two new
seal

rings
on the
pump support. Make sure

that
the
ends
of the
rings
are
engaged

to lock them
in
place. Install
a new

square-cut seal
on the O.D. of the

pump housing.

4.
Install
the
selective thrust wash-

er. Make sure that
the
correct thick-

ness selective washer
is
being used
to

obtain
the
specified
end
play.

5.
Place
the
pump
on
converter

making sure that
the
drive gear enga-

ges
the
converter
hub.
Rotate
the

pump
to
make sure that
the
gears
ro-

tate freely.

REVERSE-HIGH CLUTCH

Disassembly

1.
Separate
the
drive train
as
shown

in
Fig. 43.
Remove
the
pressure plate

retaining snap ring
as
shown
in Fig.

44.procarmanuals.com

07-04-28

C-6 Automatic Transmission

07-04-28

SNAP RING

REMOVAL INSTALLATION

FIG. 48 — Replacing Reverse-High Clutch Rear Bushing
D2035-A

Press Ram

Tool-T69L-7D044-A

D2036-A

FIG. 49—Installing Reverse-High

Clutch Front Bushing

D1898-A

FIG. 50—Checking Reverse-High

Clutch Snap Ring Clearance

ONE-WAY CLUTCH

Disassembly

1.
Remove the snap ring and rear

bushing from the rear of the low-

reverse clutch hub (Fig. 59).

2.
Remove the springs and rollers

from the spring retainer and lift the

spring retainer from the hub.

3.
Remove the remaining bushing

and snap ring from the hub.
Assembly

1.
Install a snap ring in the forward

snap ring groove of the low-reverse

clutch hub.

2.
Place the low-reverse clutch hub

on the bench with the forward end

down (Fig. 60).

3.
Place the forward clutch bushing

against the snap ring with the flat side

up.
Install the one-way clutch spring

retainer on top of the bushing. Be sure

to install the retainer in the hub so

that the springs load the rollers in a

counterclockwise direction when look-

ing down at the unit (Fig. 60).

4.
Install a spring and roller into

each of the spring retainer compart-

ments by slightly compressing each

spring and positioning the roller be-

tween the spring and the spring retain-

er (Fig. 60).

5.
Install the rear bushing on top of

the retainer with the flat side down.

6. Install the remaining snap ring

at the rear of the low-reverse clutch

hub to secure the assembly.

SERVO

Disassembly

1.
Apply air pressure to the port in

the servo cover to remove the piston

and rod.

2.
Remove the seals from the pis-

ton.

On Lincoln Continental and Conti-

nental Mark III models, 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.
D1899-A

FIG. 51—Removing Forward

Clutch Pressure Plate Snap Ring

Assembly

1.
Dip the new seals in transmission

fluid.

2.
Install new seals on the cover

and servo piston. Fig. 61 shows the

correct servo piston and cover for the

transmission.

3.
Dip the piston in transmission

fluid and install it in the cover.

LOW-REVERSE CLUTCH

PISTON

Disassembly

1.
Remove the inner and the outer

seal from the reverse clutch piston.

Assembly

1.
Dip the two new seals in clean

transmission fluid.

2.
Install the seals on the piston.

OUTPUT SHAFT

Disassembly

1.
Remove the governor attaching

bolts and remove the governor.

2.
Remove the snap ring that se-

cures the governor distributor on the

output shaft (Fig. 62) and slide it off

the front of the shaft.

3.
Remove the seal rings from the

distributor.

Assembly

1.
Carefully install new seal rings

on the distributor.

2.
Working from the front end of

the output shaft, slide the governorprocarmanuals.com

07-04-29
C-6 Automatic Transmission

07-04-29

FORWARD CLUTCH

CYLINDER-7D424
OUTER SEAL

7A548
DISC SPRING FORWARD PRESSURE INTERNAL SPLINE REAR PRESSURE

7B070

PLATE-7B066

PLATE-7B164 PLATE-7B066

INNER SEAL

377130894
PISTON

7A262 STEEL

RING

7D256
SNAP

RING

377127-S

FIG. 52—Forward Clutch Disassembled

DISC

SPRING
EXTERNAL SPLINE

PLATE-7B442

7oo/-

7000-DD
SELECTIVE

SNAP RING

377126-S

D 1635-A

FIG. 53—Removing or Installing Disc Spring

distributor into place on the shaft. In-

stall the snap ring to secure it. Make

sure that the snap ring is seated in the

groove.

3.
Position the governor on the dis-

tributor (Fig. 62) and secure them

with the attaching screws.

ASSEMBLY OF TRANSMISSION

1.
Place the transmission case in a

holding fixture.

2.
Position the low-reverse clutch

piston so that check ball is in the 6 o'

clock position (toward bottom of case)
and tap the piston into place in the

case with a clean rubber hammer.

3.
Hold the one-way clutch inner

race in position and install and torque

the attaching bolts to specification.

4.
Install a low-reverse clutch re-

turn spring in each pocket in the

clutch piston. Press the springs firmly

into the piston to prevent them from

falling out.

5.
Position the spring retainer over

the springs and position the retainer

snap ring in place on the one-way

clutch inner race.
D1632-A

D1901-A

FIG. 54—Removing Forward

Clutch Piston

CHECK BETWEEN SNAP RING

AND PRESSURE PLATE

1902-A

FIG. 55—Checking Forward

Clutch Clearance

PICK

SCREWDRIVER

D 1633-A

FIG. 56—Removing Sun Gear

Snap Ringprocarmanuals.com

07-04-30
C-6 Automatic Transmission
07-04-30

6. Install the compressing tool

shown in Fig. 29 and compress the

springs just enough to install the low-

reverse clutch piston retainer snap

ring.

7.
Install the snap ring, then re-

move the compressing tool.

8. Place the transmission case on

the bench with the front end facing

downward.

9. Position the parking gear thrust

washer and the gear on the case (Fig.

33).
Do not restake the thrust washer.

10.
Position the oil distributor and

tubes in place on the rear of the case.

Install and torque the attaching bolts

to specification.

11.
Install the output shaft, and

governor as an assembly.

12.
Place a new gasket on the rear

of the transmission case. Position the

extension housing on the case and in-

stall the attaching bolts. Torque the

attaching bolts to specification.

13.
Place the case in the holding

fixture.

14.
Align the low-reverse clutch hub

and one-way clutch with the inner

race at the rear of the case. Rotate

the low-reverse clutch hub clockwise

while applying pressure to seat it on

the inner race.

15.
Install the low-reverse clutch

plates,
starting with a steel plate and

following with friction and steel plates

alternately. Retain them with vaseline.

Refer to the Specifications Section for

the number of plates required. If new

composition plates are being used,

soak them in clean transmission fluid

for fifteen minutes before installation.

Install the pressure plate and the snap

ring. Test the operation of the low-

reverse clutch by applying air pressure

at the clutch pressure apply hole in

the case.

16.
Install the reverse planet ring

gear thrust washer and the ring gear

and hub assembly. Insert the snap

ring in the groove in the output shaft.

17.
Assemble the front and rear

thrust washers onto the reverse planet

assembly; retain with vasoline. Insert

the assembly into the ring gear and

install the snap ring.

18.
Set the reverse-high clutch on

the bench, with the front end facing

down. Install the thrust washer on the

rear end of the reverse-high clutch as-

sembly. Retain the thrust washer with

vaseline and insert the splined end of

forward clutch into the open end of

the reverse-high clutch so that the

splines engage the direct clutch fric-

tion plates (Fig. 43).

19.
Install the thrust washer and re-

tain it with vaseline, on the front end
FORWARD

SNAP

RING

377300-S
SUN
GEAR

7A348

•
INPUT

SHELL

7D064

\
THRUST

WASHER

7D066

-IT

REAR

SNAP

RING

377300-S

I)
1634-A

57—Input Shell and Sun Gear Disassembled

of the forward planet ring gear and

hub.
Insert the ring gear into the for-

ward clutch.

20.
Install the thrust washer on the

front end of the forward planet assem-

bly. Retain the washer with vaseline

and insert the assembly into the ring

gear. Install the input shell and sun

gear assembly.

21.
Install the reverse-high clutch,

forward clutch, forward planet assem-

bly and drive input shell and sun gear

as an assembly into the transmission

case.

22.
Insert the intermediate band

into the case around the direct clutch
GEAR

SNAP RING

HUB AND FLANGE
D1906-A

FIG. 58—Output Shaft Hub and

Ring Gear

LOW-REVERSE

CLUTCH
DRUM-

7D390

SPRING

RETAINER-

7D191

BUSHING
-

7E194

SPRING
-
7D170

ROLLER-7190

D 1928-A

FIG. 59—One-Way Clutch Disassembled

cylinder.Install the struts and then

tighten the band adjusting screw suffi-

ciently to retain the band.

23.
Place a selective thickness bronze

thrust washer on the rear shoulder of

the stator support and retain it with

vaseline. If the end play was not

within specification when checked prior
to disassembly, replace the washer with

one of proper thickness. Refer to

Specifications Section for selective

thrust washer thicknesses. Lay a new

gasket on the rear mounting face of

the pump and position on the case

being careful not to damage the large

seal on the O.D. of the pump hous-procarmanuals.com

07-04-31
C-6 Automatic Transmission

07-04-31

ing. Install six of the seven mounting

bolts and torque them to specifica-

tion.

24.
Adjust the intermediate band as

detailed in Section 2 and install the

input shaft with the long splined end

inserted into the forward clutch as-

sembly.

LOW-REVERSE

SPRING LOAD ON ROLLERS CLUTCH HUB

MUST BE IN A COUNTERCLOCKWISE

DIRECTION FOR INSTALLATION Q 192O A

FIG. 60—Installing One-Way

Clutch
25.
Install tool 4201-C at the sev-

enth pump mounting bolt (Fig. 24)

and check the transmission end play.

Remove the tool.

26.
Install the control valve in the

case,
making sure that the levers en-

gage the valves properly. Install the
primary throttle valve, rod, and the

vacuum diaphragm in the case.

27.
Install a new pan gasket and

the pan.

28.
Install the converter assembly.

29.
Install the transmission in the

vehicle.

PISTON

AND ROD
PISTON

COVER

Models

PGA-A3,

J3,
Z, AA

PGB-AD,
AE, Jl

PGB-F2/G2, H2

PGB-AF1,
AG, AH
Piston

Assembly

C6AP-7D021-C

C6AP-7D021-D
Cover

C6AP-7D027-A

C6AP-7D027-D
Diameter - Inches

A

2.075

2.342

2.477
' B

2.980

3.025

NONE
c

2.971

3.016

3.492
D

2.066

2.333

2.468

Models

PGC-B,
Cl
Piston and

Rod Assembly
Cover
Diameter
—
Inches

A

2.183
B

2.739
C

2.705
D

2.220

D 2037-B

FIG.
61
— Intermediate Servo Cover and Piston Dimensions

OUTPUT

SHAFT
GOVERNOR

D
1623
-A

FIG. 62—Output Shaft Disassembledprocarmanuals.com