Chevrolet Chevelle 1967 Overhaul Manual page 199

CLUTCH AND TRANSMISSIONS 7-41
NOTCH IN M
SYNCHRONIZING *'
RING
Fig. 16M—-Installing Countershaft
8. Install main drive gear and pilot bearings through
the side cover opening and into position in trans-
mission front bore.
9. Place gasket in position on front face of rear bearing
retainer.
10. Install the fourth speed synchronizing ring on main
drive gear with the notches toward the rear of the
transmission.
11. Position the reverse idler gear thrust washer
(tanged) on the machined face of the ear cast in the
case for the reverse idler shaft and hold with heavy
grease. Position the front reverse idler gear next to
the thrust washer, with the hub facing toward rear of
the case.
CAUTION: Before attempting to install main-
shaft assembly to case, slide the 3-4 synchro-
nizing clutch sleeve forward into fourth speed
detent position (fig. 6M).
12. Lower the mainshaft assembly into the case making
certain the notches on the fourth speed synchronizing
ring correspond to the keys in the clutch assembly
(fig. ISM).
13.
14.
15.
16.
17.
18.
Fig. 18M—Installing Mainshaft Assembly
CAUTION: Be sure main drive gear engages
both the countergear and anti-lash plate on
standard ratio models.
With the guide pin in rear bearing retainer aligned
with hole in rear of case, tap rear bearing retainer
into position with a soft hammer.
From the rear of the case, insert the rear reverse
idler gear, engaging the splines with the portion of
the front gear inside the case.
Using heavy grease, place gasket in position on rear
face of rear bearing retainer.
Install the remaining flat thrust washer on reverse
idler shaft. If new idler shaft is being used, drive
out the roll pin and press it into new shaft.
Install reverse idler shaft, roll pin, and thrust
washer into gears and front boss of case. Make sure
to pickup front tanged thrust washer.
NOTE: Roll pin should be in a vertical position.
Pull reverse shifter shaft to left side of extension
and rotate shaft to bring reverse shift fork forward
Fig. 17M—Checking Countergear End Play
Fig. 19M—Installing Case Extension
CHEVROLET CHASSIS OVERHAUL MANUAL