Pontiac FIREBIRD 1972 Service Manual page 879

7D-10 1972 PONTIAC SERVICE M A N U A L
3. Remove T.C.S. switch and gasket from case cover,
loosen case cover bolts and allow transmission to
drain.
4. Remove case cover assembly from transmission case
(Fig. 7D- 14).
5. Remove shifter lever bolts, lockwashers and flat
washers. Pull levers from shafts.
6. Remove both shift forks from the shifter shafts.
Remove both shifter shaft assemblies from cover. Lip
seals in case cover may now be pryed out if replace-
ment is required because of damage (Fig.
7D- 15).
7. Remove detent cam spring and detent cam retainer
ring. Remove both detent cams.
8. Inspect and replace necessary parts.
REPLACE
1. Install 1st & 2nd detent cam to detent cam pin first,
then install 3rd & 4th detent cam so that the detent
cam spring notches are offset or opposite each other.
Detent cam notches must be facing downward.
2. Install detent cam retainer ring to detent cam pin and
hook spring into detent cam notches.
3. Install both shifter shaft assemblies in case cover,
being careful not to damage lip seals. Install both
shift forks to shifter shafts, lifting up on detent cams
to allow forks to fully seat into position.
4. Install shifter levers, flat washers, lockwashers and
bolts, torquing to 25 lb. ft.
5. Move 1st & 2nd shifter lever into 2nd speed (forward)
position and position cover gasket on case.
I
Fig 7D-14 Removing o r Installing Case Cover
DETENT CAM SPRING
1 2 DETENT C A M
1
1
4 DtTEN1 CAM
1-2 SHIFTER SHAFT SHIFT
RK
1
2 SHIFT
F O R K
"
' , 3'i
5 h i T f R SHAFT
DETEYT C A M
4ETAlNtS RING
\
DETENT CAM PIN
Fig. 7D-15 Case Cover Assembly
NOTE: When installing new gasket, do not coat
with grease.
Carefully position case cover into place, making sure
the shift forks aligned with their respective mainshaft
synchronizer sleeves (Fig. 7D-14).
Install case cover attaching bolts, tighten evenly to 18
lb. ft. torque, install T.C.S. switch with new gasket
and tighten to 10 lb. ft. torque and connect control
rods to levers. Connect lead to T.C.S. switch.
Remove filler plug at side of transmission and check
lubricant level. Lubricant level should be approxi-
mately level with bottom of filler hole. If necessary to
add lubricant, use only SAE 90 multi-purpose gear
lubricant. Install and tighten plug to 30 lb. ft. torque.
GEARSHIFT CONTROL LEVER
REMOVE
1. Release control lever by inserting a thin rule or a
piece of .015" to .020" thick shim stock into the
socket alongside the base of the floor gearshift lever
on the driver's side.
2. Insert rule or stock to a depth of at least one inch to
unlock its bayonet retainer.
3. Lift the control lever and tool up out of the shifter
socket.
INSTALL
Replace lever by inserting into the shifter socket. This
bayonet will lock the control lever automatically into
its proper position.