1942 - 1947 Chevrolet Shop Manual



	*7-4*

	retainer are unevenly spaced so that the retainer may only be assembled to the case in one position, matching up the oil return slot with the hole in the case. 5. Install the special clutch gear and bearing puller, J-937, by screwing the threaded sleeve (left-hand thread) onto the clutch gear shaft. Pull the clutch gear and bearing from the case by turning the puller handles, Fig. 3. CAUTION-Do not DRIVE ON the clutch gear, as damage to both the pilot on the mainshaft and the internal bearing surface in the clutch gear will result. 6. Remove the 14 roller bearings from inside the clutch gear. 7. Turn the yoke of the mainshaft removing and replacing tool, J-938. back on the threads and screw the puller shaft into the threaded end of the mainshaft. Bolt the yoke of the tool to the rear face of the transmission case. IMPORTANT—Turn the front synchronizer ring so that the lugs line up with the slots in the mainshaft helical spline. 8. While holding puller shaft handle, turn the puller handles clockwise to force the mainshaft out of the rear bearing, Fig. 4. Disassemble the puller from the mainshaft and the transmission case, and remove the mainshaft from the transmission through the front of the case.	This raises the lock ring from the groove in the bearing and the bearing may be removed by lightly tapping the outer race toward the inside of the case, Fig. 5.

		Fig. 5—Removing Rear Searing It is necessary to remove the rear bearing before attempting to remove the countergear. 11. Remove the countershaft by driving it from the rear to the front of the case, using a soft steel drift. Remove the countergear and the front and rear countergear thrustwashers from the bottom of the case. 12. Drive out the reverse idler shaft expansion plug from the inside of the case. A hooknosed punch or drift will be found most suitable for this job. 13. Drive the idler shaft lock pin into the shaft. This pin is shorter in length than the diameter of the shaft, so that the shaft may be slipped out when the pin is driven in. DO NOT turn the shaft while removing as the lock pin may drop down between the idler shaft bushings. NOTE — It is necessary to remove the countergear before removing the idler shaft, otherwise the idler shaft will strike the countergear. 14. Remove reverse idler shaft and thrustwashers. Disassembly of the Clutch Gear 1. Place the clutch gear in a vise and remove the bearing retaining nut and oil slinger, using special wrench, J-933. Fig. 6. The retaining nut and oil slinger is a one-piece steel casting

	Fig. 4—Removing Mainshaft 9. Shift the second speed gear into the clutch sleeve. Remove the clutch sleeve assembly, first and reverse sliding gear, and the second speed gear from the case as a unit. Remove the second speed gear thrustwasher from the case. 10. Expand the rear bearing lock ring into the case with the special expanding tool, J-935.