Pontiac tempest 1968 Service Manual page 416

FOUR SPEED S A G I N A W MANUAL TRANSMISSION
7 C - 7
2. Install a blocking ring with clutching teeth
downward over synchronizing surface of the third
speed gear.
NOTE: All 4 blocking rings in the transmission
are the same and interchangeable.
8. Install 1st and 2nd synchronizer snap ring
(Fig.
7 C - 4 ) .
9. Install blocker ring with notches downward so
they align with keys of 1st and 2nd synchronizer
assemblies.
3. Install 3rd and 4th synchronizer assemblies
with the fork slot downward, pressing i t onto splines
on the mainshaft until i t bottoms out (Fig. 7C-13).
CAUTION: Be sure the notches of the blocker
ring align with the keys of the synchronizer
assembly.
10. Install f i r s t gear w i t h clutching t e e t h
downward.
11. Install f i r s t gear thrust washer (steel) and
spring washer.
12. With snap r i n g slot downward, press rear
bearing onto mainshaft (Fig. 7 C - 1 5 ) .
4. Install 3rd and 4th synchronizer snap ring.
Both synchronizer snap rings are the same.
5. Turn the rear of the mainshaft upward and i n ­
stall second speed gear with clutching teeth upward;
front of gear w i l l butt against flange on mainshaft.
6. Install blocker ring with clutching teeth down­
ward over synchronizing surface of second gear.
7. With fork slot downward, press 1st and 2nd
synchronizer assemblies onto splines of mainshaft
(Fig.
7 C - 1 4 ) .
CAUTION: Be sure notches of blocker ring align
with keys of synchronizer assembly.
FORWARD
END OF
MAINSHAFT
mm
1ST.-2ND.
SYNCH RONIZER
SPLIT RING
1ST GEAR
v
REAR BEARING
FORWARD END
O F MAIN SHAFT
SPLIT RING
Fig. 7 C - 1 5 Installing Rear Bearing
13. Install
rear bearing snap ring (Fig. 7 C - 4 ) .
14. Place speedometer gear retainer i n output
shaft.
15. Align slot i n speedometer drive gear with r e ­
tainer clip and slide gear into place.
Fig. 7 C - 1 4 Installing 1st and 2nd Synchronizer
and Second G e a r
COUNTER GEAR-ASSEMBLE
Refer to Section 7B.