1942 - 1947 Chevrolet Shop Manual



7-9

3.	Turn the yoke of the mainshaft removing and replacing tool, J-938, down on the threads and screw the tool shaft into the threaded end of the mainshaft. Bolt the yoke of the tool to the rear face of the transmission case. Turn the tool handles counterclockwise until the mainshaft is seated in the rear bearing, Fig. 13. The proper seating of the shoulder on the		5. Using a soft steel drift, tap the clutch gear bearing on the outer race until the bearing locating ring seats against the case, being careful to drive the assembly straight to prevent damage to the mainshaft pilot and pilot bearing. CAUTION—During this operation make sure that the synchronizer ring lugs line up with the slots between the clutch teeth on the clutch gear. 6. Install the clutch gear bearing retainer, making sure that the oil slot in the retainer lines up with the oil slot in the front face of the transmission case. Do not allow the gasket to protrude beyond the edge of the retainer. 7. Install the retainer screws, using the special shakeproof lockwasher. Draw the screws up evenly. 8. Check the transmission in all gears to be sure that there is no indication of a bind in any position. Universal Joint 1. Install the spacer and speedometer drive gear on the mainshaft and slide the front yoke of the universal joint on the main shaft. 2. Install the washer and capscrew. Tighten the capscrew. COVER AND SHIFTER MECHANISM-DISASSEMBLY 1. Remove the two bolts which retain the guide bar to the cover and remove the shifter forks and guide bar. 2. Remove the shifter yoke lever, anti-rattle spring, operating shaft, selector lever and bell crank, Fig. 15.

Fig. 13-lnstalling Mainshaft shaft against the inner race of the bearing may be determined by checking the end play of the second-speed gear which should be approximately .010". Clutch Gear 1. Using an arbor press, press the clutch gear bearing onto the clutch gear with the locating ring toward the front end of the gear shaft so that the bearing will enter the case to the maximum possible depth. 2. Install the combination clutch gear bearing retaining nut and oil slinger on the clutch gear shaft and draw it up tight, using the special wrench, J-933. 3. Lock the retaining nut and oil slinger in place by staking it into the hole with a center punch. Care must be used not to damage the thread on the shaft.

4. Place some cup shaft pilot hole in the clutch gear and install the 14 roller bearings, Fig. 14. After being assembled in the pilot hole, these bearings will lock themselves in place and cannot fall out. Install the clutch gear in the transmission case.		grease in the main-

			Fig. 15—Transmission Shifter Cover Assembly 3. Slide the shifter forks off the guide bar, being careful not to lose the detent balls and spring.
		Fig. 14—Mainshaft Pilot Bearing Rollers in Clutch Gear