Pontiac tempest 1968 Service Manual page 401

7 B - 6
1968 P O N T I A C SERVICE MANUAL
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CAM DETENT PIN
I I I
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SHIFTER SHAFTS
. S H I F T F O R K S
V
E R I N G
DETENT C A M S
D E T E N T C A M S P R I N G
F i g . 7 B - 7 Installing Extension Housing Bushing
TRANSM/SS/ON-D/SASSEMBLE
1. Drain lubricant.
2 . Remove side
cover attaching bolts. Remove
side cover and gasket.
3. Remove front bearing retainer and gasket.
4. Remove front bearing to main drive gear snap
ring.
5. Pull main drive gear out of case as far as
possible and remove front bearing (Fig. 7 B - 9 ) .
NOTE: Although front bearing is a slip fit on main
drive gear, it may be necessary to aid removal
with screwdriver.
6. Remove extension
housing to case attaching
bolts.
7. Remove reverse idler shaft to gear snap ring
(Fig.
7 B - 1 0 ) .
Slide reverse idler gear forward on
shaft.
8. From rear of case, remove extension housing
and mainshaft assembly (Fig. 7 B - 1 1 ) .
9. Remove main drive gear and third speed block­
ing ring from inside of case and remove 14 bearing
rollers from mainshaft drive gear.
10. Using snap ring pliers, expand snap ring at
front of extension housing which retains extension
housing to mainshaft (Fig. 7 B - 1 2 ) and remove ex­
tension housing.
11. Using countershaft alignment tool J 22246, tap
out counter gear shaft and its woodruff key through
rear of case (Fig. 7 B - 1 3 ) . Remove counter gear and
two (2) tanged thrust washers.
Fig. 7 B - 8 Exploded View of Transmission Side Cover
12. Remove countershaft alignment tool J 2 2 2 4 6 .
1 3 . From each end of countershaft, remove spacer
and 27 bearing rollers.
14. Using a long brass drift or punch, drive re­
verse idler shaft and woodruff key through rear of
case (Fig. 7 B - 1 4 ) .
15. Remove reverse idler gear and tanged steel
thrust washer.
16. Remove second-third synchronizer sleeve
(Fig. 7B-15).
17. Remove rear bearing snap ring (Fig. 7 B - 1 5 ) .
18. Remove speedometer drive gear by depressing
retainer clip and sliding off output shaft.
19. Using hydraulic or arbor press, press off rear
bearing, spring washer, thrust washer and reverse
gear (Fig. 7 B - 1 6 ) .