Chevrolet 1973 Overhaul Manual page 254

Fig. 13B-Installing Rear Bearing
6. Install the third speed gear (hub to front of
transmission) and the third speed gear synchroniz­
ing ring (notches to front of transmission).
7. Install the third and fourth speed gear clutch
assembly (hub and sliding sleeve) with both sleeve
taper and hub toward the front, making sure the
keys in the hub correspond to the notches in the
third speed gear synchronizing ring.
8. Install snap ring in the 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. 10B). Spread
the snap ring in the plate to allow the snap ring to
drop around the rear bearing and press on the end
of the mainshaft until the snap ring engages the
groove in the rear bearing.
10. Install the reverse gear (shift collar to rear) and 2
anti- rattle springs (RPO M20 only).
11. Install retaining clip and speedometer gear. On
models using the metal gear, press speed. Drive
gear onto mainshaft using a suitable press plate
such as J-1453. Position the gear to obtain a
measurement of 4 7/8" from the forward side of
the gear to the flat surface of the rear bearing
retainer (Fig. 14B).
ASSEMBLY OF COUNTERGEAR
1. Install roller spacer (tube type) in countergear.
2. Using heavy grease to retain the rollers, install a
spacer, 28 rollers, a spacer, 28 more rollers, then
another spacer. Install in the other end of the
countergear, a spacer, 28 rollers, a spacer, 28 more
rollers, and another spacer (fig. 15B).
3. Insert Tool J-22246 into countergear.
ASSEMBLY OF CASE CO M PO NENTS
1. Rest the transmission case on its side with the side
CLUTCHES A N D M A N U A L T R A N S M IS S IO N S
Fig. 14B-Installing Speedometer Gear
Fig. 15B--Loading Countergear Bearings Using
cover opening toward the assembler. Put counter­
gear tanged thrust washers in place, retaining them
with heavy grease, making sure the tangs are
resting in the notches of the case.
2. Set countergear in place in bottom of transmission
case, making sure that tanged thrust washers are
not knocked out of place.
3. Position the transmission case resting on its front
face.
4. Lubricate and insert countershaft in rear of case.
Turn countershaft so flat on end of shaft is
horizontal and facing bottom of case.
5. Align countergear with shaft in rear and hole in
front of case, and press countershaft into case
(pushing assembly tool out front of case) until flat
on shaft is flush with rear of case. Be sure thrust
washers remain in place (fig. 16B).
7 M - 3 5
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J-22246
OVERHAUL MANUAL