1969 FORD MUSTANG Volume One Chassis

07-03-29
FMX Transmission

07-03-29

specification. Be sure that the rear

fluid screen retaining clip is installed

under the valve body bolt as shown in

Fig. 17.

4.
Install the large control pressure

tube in the valve body and regulator.

5.
Install the small control pressure

compensator tube in the valve body

and regulator.

6. Turn the manual valve one full

turn in each manual lever detent posi-

tion. If the manual valve binds against

the actuating pin in any detent posi-

tion, loosen the valve body attaching

bolts and move the body away from

the center of the case. Move the body

only enough to relieve the binding.

Torque the attaching bolts and check

the manual valve for binding.

7.
Torque the front servo attaching

bolts to specification.
FRONT AND REAR

BAND ADJUSTMENTS

Adjust the front and rear bands as

detailed in Section 2.

VACUUM DIAPHRAGM UNIT

1.
Position the control rod in the

bore of the vacuum diaphragm unit

and install the diaphragm unit. Make

sure the control rod enters the throttle

valve as the vacuum unit is installed.

2.
Torque the diaphragm unit to

specification.

FLUID FILTER

AND OIL PAN

1.
Position the fluid filter on the
rear clip so that the tang enters the

hole in the filter flange. Then, rotate

the filter (clockwise) until the grom-

met is over the pump inlet port of the

valve body regulator and press the fil-

ter down firmly. Install the filter re-

taining clip.

2.
Place a new gasket on the trans-

mission case and install the pan. In-

stall the attaching bolts and lock

washers and torque the bolts to speci-

fication.

If the converter and converter hous-

ing were removed from the transmis-

sion, install these components. Posi-

tion the transmission assembly on the

transmission jack, and refer to Trans-

mission Installation Procedures for in-

stalling the transmission.procarmanuals.com

07-04-01

C-6 Automatic Transmission
07-04-01

PART 7-4 C-6 Automatic Transmission

Trans-
Selector

mission Engine Lever

Model Model Location

PGA-A3 390-2V Column

PGA-J3 390-2V Console

PGA-AC 390-4VI.P. Column

PGA-AD 390-2VI.P. Console

PGA-AE 390-2V I.P. Console

PGA-Z 429-2V Column

PGA-AA 429-2V Console

PGB-F2 428-4 V®@ Column

PGB-G2 390-2V,4V© Column

PGB-H2 428-4V® Column

PGB-J1 429-4V Column

PGB-AD 429-4V Column

PGB-AE 429-4V Console

PGB-AF-1 428-4VC.J. Console

PGB-AG 428-4V C. J. Column

PGB-AH 428-4V C.J. Console

PGC-B 460-4V Column

PGC-C1 460-4V Column

©Police Interceptor

©All Except 3.25:
1
Axle

©Police, Fleet and Heavy Duty Units
MODEL APPLICATION
All
Models
Ford

X

X

X

X

X

X

X

X

X
Mercury
x

X

X

X

X

X

X

X
Meteor
X

X

X

X

X

X

X

X
Cougar
X

X
Fairlane
X

X

X

X
Falcon
Montego
X

X

X

X
Mustang
X

X
Lincoln-
Continental

X
Thunderbird
X
1
Continental-
Mark
III

X

COMPONENT INDEX

ASSEMBLY OF TRANSMISSION

BAND ADJUSTMENT

Intermediate Band

CONTROL VALVE BODY

Cleaning and Inspection

Disassembly and Overhaul

Removal and Installation

DESCRIPTION

DISASSEMBLY AND OVERHAUL OF

TRANSMISSION

DOWNSHIFT LINKAGE

Adjustment

Parts Repair or Replacement

EXTENSION HOUSING

Cleaning and Inspection

Removal and Installation

EXTENSION HOUSING BUSHING

Removal and Installation

All
Models
04-29

04-11

04-16

04-22

04-12

04-02

04-18

04-05

04-20

04-14

04-11

04-13
COMPONENT INDEX

EXTENSION HOUSING REAR SEAL

Removal and Installation

FORWARD CLUTCH

Cleaning and Inspection

Disassembly and Overhaul

FRONT PUMP

Cleaning and Inspection

Disassembly and Overhaul

GOVERNOR

Cleaning and Inspection

Removal and Installation

INPUT SHELL AND SUN GEAR

Disassembly and Overhaul

LOW-REVERSE CLUTCH PISTON

Disassembly and Overhaul

MANUAL LINKAGE

Adjustment

Parts Repair or Replacement
All
Models
04-13

04-15

04-25

04-15

04-24

04-16

04-11

04-27

04-28

04-05

04-20
procarmanuals.com

07-04-02
C-6 Automatic Transmission

07-04-02

COMPONENT INDEX

NEUTRAL START SWITCH-CONSOLE

SHIFT

Adjustment

Removal
and
Installation

(Refer
to
Part 7-1
for
column shift adjust-

ment
and
removal
and
installation procedures)

ONE-WAY CLUTCH

Cleaning
and
Inspection

Disassembly
and
Overhaul

OUTPUTSHAFT

Disassembly
and
Overhaul

OUTPUT SHAFT HUB
AND
RING GEAR

Disassembly
and
Overhaul

PARKING PAWL LINKAGE

Parts Repair Replacement

REVERSE-HIGH CLUTCH

Cleaning
and
Inspection

Disassembly
and
Overhaul
All
Models
04-05

04-09

04-16

04-28

04-28

04-27

04-21

04-15

04-24

1 DESCRIPTION

DESCRIPTION

Figure
1
shows
the
location
of
the
COMPONENT INDEX

SELECTOR LEVER-CONSOLE SHIFT

Removal
and
Installation

SERVO

Cleaning
and
Inspection

Disassembly
and
Overhaul

Removal
and
Installation

SERVO APPLY LEVER

Parts Repair
or
Replacement

SERVO SEAL

Removal
and
Installation

THROTTLE LINKAGE ADJUSTMENT

TRANSMISSION (Complete)

Removal
and
Installation

TRANSMISSION CASE THREAD REPAIR
All
Models
04-09

04-16

04-28

04-11

04-21

04-12

04-05

04-13

04-21

converter, front pump, clutches, gear

train
and
most
of
the
internal parts

used
in the C6
transmission.
The
iden-
tification
tag (Fig. 2),
attached
to
the

intermediate servo lower front cover

bolt, includes
the
model prefix
and

SUPPORT

CONVERTER
INTERMEDIATE

BAND
FORWARD CLUTCH
HUB
LOW-REVERSE GOVERNOR

AND RING GEAR CLUTCH DISTRIBUTOR SLEEVE

GOVERNOR

REVERSE

RING GEAR
EXTENSION

HOUSING

SEAL

OUTPUT

SHAFT

EXTENSION

HOUSING

INPUT

SHAFT

CONVERTER

ONE-WAY

v>LU I v*ri «wi>i-»>p^fc_
iivir"
n LTR i

REVERSE-HIGH CLUTCH

CONTROL VALVE BODY

FIG.
1—C6
Automatic Transmission—Sectional
REVERSE PLANET

CARRIER

'FRONT PLANET CARRIER

PARKING PAWL ACTUATING
ROD

FORWARD CLUTCH

CONTROL LEVERS

D1924-
A
procarmanuals.com

07-04-03

C-6 Automatic Transmission
07-04-03

suffix, a service identification number,

and serial number. The service
identif-

ication number indicates changes to

service details which affect interchan-

geability when the transmission model

is not changed. For interpretation of

this number, see the Master Parts Ca-

talog.

The C6 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 hydrau-

lic control system schematic is shown

in Figure 3. The converter housing

and the fixed splines which engage the

splined OD of the low-reverse clutch

steel plates, are both cast integrally

into the case.

Only one (intermediate) band is

used in the C6 transmission. This
TRANSMISSION

MODEL

FIG. 2—Identification Tag

along with the forward clutch is used

to obtain intermediate gear.

The only adjustment on the trans-

mission proper is the intermediate

band.

The fluid is drained from the trans-

mission by loosening the pan bolts
D1925-A

and allowing it to drain. Finally, to

allow the pan to drain more thorough-

ly, remove all bolts except the two

from the front.procarmanuals.com

07-04-04

C-6 Automatic Transmission

07-04-04

.CONVERTER FORWARD CLUTCH
LOW AND
REVERSE CLUTCH.

INTERMEDIATE SERVO

PRIMARY

GOVERNOR
CHECK VALVE

(STATOR SUPPORT)

SECONDARY

GOVERNOR

REVERSE
AND
HIGH CLUTCH

INTERMEDIATE

INTERMEDIATE SERVO

SERVO CAPACITY

ACCUMULATOR MODULATOR
CHECK VALVE

(STATOR SUPPORT)

CONTROL

PRESSURE

COASTING

REGULATOR

THROTTLE

PRESSURE

MODULATOR
MAIN
OIL

PRESSURE

REGULATOR

X
3-2 SHIFT

TIMING

VALVE

MANUAL
LOW

2-1

SCHEDULING

3-2ORFICE

AND CHECK

VALVE

MAIN
OIL

PRESSURE

BOOSTER
THROTTLE

PRESSURE

BOOSTER
THROTTLE
DOWNSHIFT

THROTTLE

PRESSURE

RELIEF

MANUAL
VALVE

n

I
I
1!
I I

P
R N D 2 1
CONVERTER

PRESSURE

RELIEF

X
EXHAUST

D1816-A

FIG. 3—Hydraulic Control Systemprocarmanuals.com

07-04-05
C-6 Automatic Transmission

07-04-05

IN-VEHICLE ADJUSTMENTS AND REPAIRS

CONTROL LINKAGE

ADJUSTMENTS

The transmission control linkage

adjustments should be performed in

the order in which they appear in this

section of the manual.

THROTTLE AND

DOWNSHIFT LINKAGE

ADJUSTMENTS

Adjusting the throttle linkage is im-

portant to be certain the throttle and

kickdown systems are properly adjust-

ed. The kickdown system should come

in when the accelerator is pressed

through detent, and not before detent.

Refer to Group 10 for detailed

throttle and downshift linkage adjust-

ment procedures.

MANUAL LINKAGE

ADJUSTMENT

Column Shift

1.
Place the selector lever in the D

position tight against the stop.

2.
Loosen the shift rod adjusting

nut at point A (Fig. 4, 5, 6 or 7).

3.
Shift the manual lever at the

transmission into the D detent posi-

tion, third from the rear.

4.
Make sure that the selector lever

has not moved from the D stop; then,

tighten the nut at point A to 10-20 ft-

lbs.

5.
Check the transmission operation

for all selector lever detent positions.

Console Shift

1.
Position the transmission selec-

tor lever in the D position.

2.
Raise the vehicle and loosen the

manual lever shift rod retaining nut

(Fig. 8, 9 or 10). Move the transmis-

sion manual lever to the D position,

fourth detent position from the back

of the transmission.

3.
With the transmission selector

lever and manual lever in the D posi-

tions,
torque the retaining nut 10 to

20 ft-lbs.

4.
Check the operation of the trans-

mission in each selector lever position.
COLUMN SHIFT LEVER

SHIFT ROD

TRANSMISSION

MANUAL LEVER

D2031-A

FIG. 4—Manual Linkage—Column Shift—Ford-Mercury-Meteor

TRANSMISSION

MANUAL LEVER

FIG. 5—Manual Linkage—Column Shift—Fairlane-Montego

NEUTRAL START SWITCH

ADJUSTMENT-

CONSOLE SHIFT

On vehicles equipped with a

column-mounted neutral start switch,

refer to Part 7-1, Section 2, for the

adjustment procedures.

FORD, MERCURY

AND METEOR

1.
With the manual linkage proper-

ly adjusted, check the starter en-

gagement circuit in all positions. The

circuit must be open in all drive posi-

tions and closed only in park and neu-

tral.

2.
Remove the four screws and

plates securing the selector lever
D2032-M

the

handle to the lever. Remove

handle and detent control.

3.
Remove the two screws from the

rear of the console top panel. Pull the

panel back to unhook it from the

front of the console and remove the

panel.

4.
Loosen the two combination

starter neutral and back-up light

switch attaching screws (Fig. 11).

5.
Move the selector lever back and

forth until the gauge pin (No. 43 drill)

can be fully inserted into the gauge

pin holes (Fig. 11).

6. Place the transmission selector

lever firmly against the stop of the

neutral detent position.

7.
Slide the combination starter

neutral and back-up light switch for-

ward or rearward as required, untilprocarmanuals.com

07-04-06
C-6 Automatic Transmission
0704-06

TRANSMISSION

MANUAL LEVER

STUD-7B415

ENGAGE FLATS OF STUD IN SLOT OF

ROD BEFORE APPLYING TORQUE

FIG. 6—Manual Linkage—Column Shift—Lincoln Continental

INNER BRACKET-7C431

TRANSMISSION

MANUAL LEVER

ROD-7326

SHIFT ROD-7A024

ENGAGE FLAT OF STUD IN SLOT
OF

ROD BEFORE APPLYING TORQUE
POINT A

BRACKET ASSEMBLY-7C324

D1831-A

FIG.
7—Manual
Linkage—Column Shift—Thunderbird-Continental Mark
III

the switch lever contacts
the
selector

lever actuator.
If an
adjustment
can

not
be
made
by
rotating
the
switch,

loosen
the
actuator lever attaching

bolt
and
adjust
the
lever (Fig.
11).

8. Tighten
the
neutral start switch

attaching screws.
If the
actuator lever
was adjusted, tighten
the
actuator

lever bolt.

9. Turn
the
ignition
key to the

ACC position
and
place
the
selector

lever
in the
reverse position
and
check

the operation
of the
back-up lights.

Turn
the key off.
D2033-A

10.
Place
the
console
top
panel
on

the console
and
install
the
retaining

screws.

11.
Position
the
selector lever
de-

tent control
and
handle
on the
selector

lever
and
secure with
the
four plates

and attaching screws.

FAIRLANE-MONTEGO

1.
With
the
manual linkage proper-

ly adjusted, check
the
starter
en-

gagement circuit
in all
positions.
The

circuit must
be
open
in all
drive posi-

tions
and
closed only
in
park
and neu-

tral.

2.
Remove
the
selector lever handle

from
the
lever.

3.
Remove
the
trim panel from
the

top
of the
console.

4.
Remove
the
cover
and
dial indi-

cator
as an
assembly.

5.
Remove
the six
screws that
se-

cure
the
selector lever retainer
to the

selector lever housing. Lift
the
retainer

from
the
housing.

6. Loosen
the two
combination

starter neutral
and
back-up light

switch attaching screws (Fig.
12).

7.
Move
the
selector lever back
and

forth until
the
gauge
pin
(No.
43
drill)

can
be
fully inserted into
the
gauge

pin holes (Fig.
12).

8. Place
the
transmission selector

lever firmly against
the
stop
of the

neutral detent position.procarmanuals.com

07-04-07
C-6 Automatic Transmission

07-04-07

7E263 ASSEMBLY
••-{pi—

NUT

332334-S-l

FIG.
8—Manual
Linkage—Console Shift—Ford-Mercury-Meteor
D 1822-A

TRANSMISSION

MANUAL

LEVER

MANUAL

LINKAGE ROD

7340
SELECTOR LEVER

SELECTOR

LEVER

RETAINER

NUT

382384-S4

FLAT WASHER

372285-S8

ENGAGE FLATS OF

STUD IN SLOT OF
BUSHING

ROD BEFORE APPLYING 7343

TORQUE

D1829-A

FIG.
9—Manual
Linkage—Console Shift—Fairlane-Montegoprocarmanuals.com