Pontiac FIREBIRD 1972 Service Manual page 888

FOUR-SPEED MUNCIE TRANSMISSION 7D- 19
32. Install six (6) extension-to-case attaching bolts.
Torque the upper 3 bolts to 20 lb. ft.; lower 3 bolts
to 30 lb. ft.
33. Push or pull reverse shifter shaft to line up groove in
the shaft with holes
:
.
+he boss and drive in the lock
pin. Install shifter lever, washers and bolt, torquing
to 30 lb. ft.
34. Press clutch gear bearing onto main drive gear shaft
(snap ring groove to front) and into case, until several
main drive gear retaining threads are exposed.
35. Lock transmission up by shifting into two gears. In-
stall clutch gear bearing retainer nut on the gear shaft
and draw it up tight, using Tool J 933. Be sure bear-
ing fully seats against shoulder on gear, torque retain-
ing nut to 40 lb. ft. and lock in place by staking
securely into main drive gear shaft hole with a center
punch. Care must be used to avoid damaging the
threads on the shaft.
36. Install the clutch gear bearing retainer, gasket, two
bolt locks and four attaching bolts, using a suitable
sealer on bolts. Torque to 20 lb. ft.
37. Shift 3rd & 4th synchronizer sleeve into neutral posi-
tion and 1st & 2nd synchronizer sleeve into 2nd gear
(forward) detent position. Shift case cover 3rd & 4th
shifter lever into neutral detent and 1st & 2nd shifter
lever into 2nd gear (forward) detent position.
38. Install case cover gasket and carefully position case
cover into place. There is a dowel pin in cover to
assure proper alignment with case. Install seven (7)
attaching bolts and tighten evenly to avoid case cover
distortion. Torque to 20 lb. ft.
INSTALL
1. Raise transmission until rear extension can be moved
rearwards over center cross member support.
NOTE: If it was necessary to remove cross
member support before removing transmission,
install support whde transmission is held in a
raised position.
2. Move transmission forward until extension bracket
studs engage holes in cross member support and main
drive gear shaft enters clutch housing. Care should be
taken to make certain clutch release bearing remains
seated.
3. Install Aligning Stud J 1126 in lower right transmis-
sion-to-clutch housing bolt hole for alignment.
4. Install two upper transmission-to-clutch housing
mounting bolts and washers and tighten securely to
55 lb. ft. torque. Remove aligning stud and install two
lower mounting bolts and washers and tighten to 55
lb. ft. torque.
5. Install rear extension insulator-to-cross member sup-
port bolts and tighten to 30 lb. ft. torque.
6. Install propeller shaft assembly.
7. Install shifter assembly and secure it to transmission
rear extension support with two shifter-to-extension
support bolts. Tighten upper bolt to 45 lb. ft. torque.
Tighten lower bolt to 30 lb. ft. torque.
8. Connect linkage and adjust as described in O N CAR
ADJUSTMENTS.
NOTE: When installing new gasket, do
not coat
9. Connect speedometer cable to speedometer driven
with grease.
gear and tighten securely.
39. Install speedometer driven gear assembly, retainer,
10. Connect back-up light leads to back-up light switch
bolt and lockwasher to rear extension. Torque to 4 lb.
leads and connect lead to TCS switch on case cover.
ft.
11. Remove filler plug at side of transmission and add 2
40. Install insulator assembly on rear extension, if
1/2 pints of SAE 90 multi-purpose gear lubricant.
removed. Torque bolts to 30 lb. ft.
Lubricant level should be approximately level with
bottom of filler plug hole. Install plug and tighten
41. If shifter support to rear extension was removed,
plug to 30 lb. ft. torque.
reinstall, tightening 3 bolts to 30 lb. ft. torque.
12. Check shift pattern and adjust as required.
SPECIFICATIONS
TRANSMISSION IDENTIFICATION
Wide Ratio (400 engine)
.......................................... WD
Close Ratio (400 & 455 engines)
............................
WJ
An identifying code is marked in yellow paint on all four-
speed manual transmissions. This code consists of two
letters, one inch high, on the top of the case: