1969 FORD MUSTANG boot

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

06-03-05
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