Installing Input Shaft Bearing; Exploded View Of Second Ana Third Synchronizer - Pontiac Grand Prix Service Manual

THREE-SPEED DEARBORN MANUAL TRANSMISSION 7A-9
Fig. 7A-13 Installing Input Shaft Bearing
2. Start hub in the sleeve, making sure alignment
marks are indexed.
3. Position the three inserts in the hub with the small
end over the spring and the shoulder on the inside of
the hub.
4. Slide the sleeve onto the hub until the detent is
engaged.
5. Install the front insert spring in the hub.
6. Install one insert spring (Fig. 7A- 14) into the groove
of the second and third speed synchronizer hub,
making sure that all three insert slots are fully covered
(Fig. 7A-18).
7. With alignment marks on the hub and sleeve
aligned, start the hub into the sleeve.
8. Place the three inserts, in the slots, on top of the
retaining spring and push the assembly together.
9. Install the remaining insert spring so that the spring
ends cover the same slots as does the other spring.
NOTE: Do not stagger the springs.
10. Place a synchronizer blocking ring on each end of
the synchronizer sleeve.
11. Lubricate main shaft splines and machined
surfaces with transmission lubricant.
12. Using an arbor press, install the first and reverse
synchronizer hub and sliding gear onto the mainshaft,
with the teeth end of the gear facing toward the rear of
the shaft (Fig. 7A-19). When pressed into place, install
the snap ring (Fig. 7A-15).
4
13. Coat the tapered machine surface of the first gear
with grease. Place the blocking ring on the greased
surface.
14. Slide the first gear onto the main shaft, with the
blocking ring toward the rear of the shaft. Rotate the
gear as necessary to engage the three notches in the
blocking ring with the synchronizer inserts. Secure the
first gear with thrust washer and snap ring.
15. Coat the tapered machine surface of the second
gear with grease and slide the blocking ring onto it.
INSERT HUB AND SLEEVE ALIGNMENT MARKS BLOCKING
BLOCKING INSERT HUB SLEEVE INSERT SPRING
RING
Fig. 7A-14 Exploded View of Second ana Third
Synchronizer