THREE
SPEED
DEARBORN
MANUAL
TRANSMISSION
7A-13
with
the countershaft. Before the countershaft is
completely
inserted, make
sure
that the
locking
pin
hole in the shaft
will
line up
with
the
locking
pin
hole in the
case.
28.
Drive
the shaft into place and insert the lock-
ing
pin,
29.
Coat a new extension housing
gasket
with
seal-
er and
install
it on the
case.
30.
Dip
tiie
threads
of the extension housing
screws
in
sealer.
31.
Install
the extension housing. Torque the
screws
to 46 lb. ft.
32.
Install
the
filler
and drain plugs in
case,
mak-
ing
sure
the magnetic plug is installed in bottom of
case.
33.
Place
the transmission in
gear
and put
lubri-
cant over the entire
gear
train
while
rotating the
input
shaft.
34.
Coat a new cover
gasket
with
sealer
and
install
it
on the
case.
35.
Install
cover. Torque
screws
to 17 lb. ft.
8.
Refill
transmission
with
recommended
lubricant.
SPECIFICATIONS
TRANSMISSION
IDENTIFICATION
An
identifying
code
is marked in
yellow
paint on
all
three
speed
manual transmissions. This
code
consists
of two letters, 2 inches
high,
on the R.H.
side of the
case.
The letters "DA"
identify
the
standard Pontiac three
speed
manual (Dearborn)
transmission and "DB" identifies a heavy duty
Tempest or Firebird three
speed
manual (Dearborn)
transmission.
A
number derived
from
the vehicle identification
number is
also
stamped on the transmission
case
as shown in Fig. 7A-25.
GEAR
RATIOS
First
Speed
2.42:1
Second
Speed
.
1.61:1
Third
Speed
1.00:1
Reverse
. 2.33:1
TRANSMISSION—INSTALL
IN
VEHICLE
1.
Install
guide pin in upper
right
transmission to
flywheel
housing bolt hole for alignment and place
transmission on guide pin. Rotate transmission, as
necessary,
to start main drive
gear
splines into
clutch
friction
plate. Slide transmission forward.
NOTE:
Make
certain
splines
of
clutch
friction
plate
are
concentric
with
pilot
bearing
in
crank-
shaft
and
release
bearing
properly
installed.
2.
Install
two (2) lower transmission mounting
bolts.
Remove guide pin and
install
two (2) upper
bolts.
Torque bolts 55 lb. ft.
3.
Slide crossmember forward and
install
four (4)
bolts.
Torque 25 lb. ft.
4.
Install
transmission mount and lower engine.
Torque mount bolts 30 lb. ft.
5.
Install
propeller shaft.
6. Connect linkage and adjust as described in ON
CAR
ADJUSTMENTS
LUBRICANT
Capacity 2 3/4 pints
CLEARANCES
Countershaft
Gear
End Play. . . .
0.004"-0.018"
Reverse
Idler
Gear
End Play . . . 0.004
M
-X).018"
STAMP
VEHICLE
IDENTIFICATION
NUMBER
CONSISTING
OF THE
FIGURE
2
FOLLOWED
BY THE
LAST
8
DIGITS
OF CAR
SERIAL
NUMBER.
7. Connect
speedometer
cable.
Fig.
7A-25
Vehicle
Identification
Number
Location
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