Pontiac tempest 1968 Service Manual page 393

7A-12 1968 P O N T I A C SERVICE MANUAL
8. Place second and third speed synchronizer in
second speed position (toward rear of case).
9. Align the shift fork and Install second and third
speed shift rail.
NOTE: It will be necessary to depress detent plug
to install the rail in the bore. Move the rail in
until the detent plug engages the forward notch.
10. Secure the shift fork to the shift rail with set
screw.
11. Move the synchronizer to the neutral position.
12. Install the interlock plug in the case. If the
second and third speed shift rail is in the neutral
position, the top of the interlock will be slightly
lower than the surface of the first and reverse shift
rail bore.
13. Move the first and reverse synchronizer for­
ward and place the first and reverse shift fork in the
groove of the synchronizer.
14. Align the shift fork and install the first and
reverse shift rail. Move the rail in until the center
notch is aligned with the detent bore.
15. Install the remaining detent plug and spring.
Secure the spring with the slotted head set screw.
Turn screw in until the head is flush to 0.020 inches
below the top of the case.
16. Secure the shift fork to the shift rail with set
screw.
F i g . 7A-24 Installing Tempest Rear Bearing
17. Install a new shift rail expansion plug in front
of the case.
18. While holding the input shaft and blocking ring
in position, move the main shaft forward to seat the
main shaft pilot in the roller bearings of the input
shaft.
19. Tap the input shaft bearing into place in the
case while holding the main shaft to prevent the
roller bearings from dropping out.
20. Install the front bearing retainer and new
gasket, making sure the oil return slot is toward
bottom of the case. Torque the attaching screws to
22 lb. ft.
21. Install the large snap ring on the rear bearing.
22. Position the bearing on the output shaft, with
the snap ring toward the rear of the shaft.
23. Thread tool J 21774-2 all the way into
J 21774-1 and place tools on output shaft next to
bearing.
24. PONTIAC:
a. Install speedometer driven gear snap ring on
output shaft.
b. Back tool J 21774-2 out of J 21774-1, using
handle J 8614-1, until bearing is positioned cor­
rectly on output shaft.
c. Remove speedometer driven gear snap ring
and tools.
T E M P E S T OR FIREBIRD:
a. Install tool J 8614-1 on lugs of J 21774-2
and place J 6135 on output shaft. Secure J 6135 in
position against J 21774-2 and J 8614-1 and lock
in place by tightening the set screw against the
non-finished surface of the output shaft (Fig.
7A-24).
NOTE: A bench rise may be used in lieu of J 6135.
b. Back tool J 21774-2 out of J 21774-1 until
bearing is positioned correctly on output shaft.
c. Loosen J 6135 set screw and remove tools.
25. Place speedometer drive gear locking ball in
the detent on the output shaft and slide speedometer
drive gear into place. Secure gear with snap ring.
26. Using a hook or your hand, lift the counter-
gear from the bottom of the case and align it and
the thrust washers with the bore in the case.
27. Working from the rear of the case, push the
countershaft alignment tool out of the countergear