Pontiac tempest 1968 Service Manual page 414

FOUR SPEED S A G I N A W MANUAL TRANSMISSION
7 C - 5
Fig. 7 C - 5 Removing Front Bearing
Fig. 7 C - 6 Removing Mainshaft
9. Using snap ring pliers, expand snap ring at
rear of extension housing which retains extension
housing to mainshaft (Fig. 7C-7) and remove ex­
tension housing.
10. Using countershaft alignment tool J 22246, tap
out counter gear shaft and its woodruff key through
rear of case (Fig. 7C-8) and remove countergear and
2 tanged thrust washers.
At this point, tool J 22246 may be left in to hold
the roller bearings in place or be taken out in which
case 27 roller bearings and a spacer must be re­
moved from each end of the shaft.
11. Remove reverse idler gear stop ring. Use a
long drift or punch through the front bearing case
bore and drive the reverse idler shaft and woodruff
key through rear of the case (Fig. 7C-9).
12. Remove 3rd and 4th synchronizer snap ring
(Fig. 7C-4).
13. Support third speed gear with press plates
and press on front of mainshaft to remove synchro­
nizer assembly, third gear blocker ring and third
speed gear from mainshaft (Fig. 7C-10).
Fig. 7 C - 7 Expanding Extension Housing Snap Ring
C O U N T E R S H A F T
J 2 2 2 4 6
Fig. 7 C - 8 Removing or Installing Countershaft
Fig. 7 C - 9 Removing Reverse Idler G e a r Shaft
14. Remove rear bearing snap ring from main-
shaft (Fig. 7C-4).
15. Support first gear with press plates and press
on rear of main shaft to remove first gear, thrust
washer, spring washer, rear bearing and snap ring
(Fig. 7C-11).
16. Remove speedometer gear by depressing r e ­
tainer clip and sliding gear off output shaft.