Checking Countergear End Play; Installing Mainshaft Assembly - Pontiac Grand Prix Service Manual

7D-12
1969 PONTIAC SERVICE MANUAL
Fig. 70-23 Installing Countershaft
7. Install the third and fourth speed gear clutch
assembly (hub and sliding sleeve) with bolt sleeve
taper and hub toward front, making sure keys in hub
correspond to notches in the third speed gear synchro-
nizing ring.
8. Install snap ring in groove in mainshaft in front of
the third and fourth speed clutch assembly, with ends
of snap ring seated behind spline teeth.
9. Install the rear bearing retainer (Fig. 7D-21). Spread
the snap ring in the retainer to allow the snap ring to
drop around the rear bearing. Press on the end of the
mainshaft until snap ring engages groove in the rear
bearing.
10. Install the reverse gear (shift collar to rear).
11. Place speedometer gear retainer in output shaft.
12. Align slot in speedometer drive gear with retainer
clip and slide gear into place.
CA UTION: Make certain correct speedometer drive
gear is installed. Refer to Speedometer Gear Usage
Chart in Section 0 .
13. Install seam-type roller spacer in countergear and
insert Tool J 22379 into countergear.
14. Using heavy grease to retain the rollers, install a
.050" spacer and 28 rollers in either end of the
countergear, a .05OU spacer, 28 more rollers and
another .050" spacer (Fig. 7D-22).
15. Follow the same procedure for the opposite end of
the countergear.
16. Rest the transmission case on its side, with the side
cover opening toward the assembler. Put countergear
tanged thrust washers in place, retaining them with
heavy grease and making sure the tangs are resting in
the notches of the case.
17. Set countergear in place in bottom of transmission
case, making sure that tanged thrust washers are not
knocked out of place.
18. Position the transmission case, resting on its front
face.
4
19. Lubricate and insert countershaft in rear of case.
Turn countershaft so flat on end of shaft is horizontal
and facing bottom of case.
NOTE: The flat cn shaft must be horizontal and toward
the bottom to mate with rear bearing retainer when
installed.
20. Align countergear with shaft in rear and hole in
front of case and press countershaft into case (pushing
Tool J 22379 out front of case) until flat on shaft is
flush with rear of case. Be sure thrust washers remain
in place (Fig. 7D-23).
Fig. 70-24 Checking Countergear End Play
Fig. 7D-25 Installing Mainshaft Assembly