1942 - 1947 Chevrolet Shop Manual



	*7-22*

	The 1/4" wide spacer goes between the second and third-speed gears. The 7/8" wide spacer is assembled between the third-speed and reverse gears, and the 5/32" wide spacer between the reverse and counter drive gears. When pressing the gears on the countershaft, the round keys should be used to keep the keyways lined up. After the gears are pressed into place, the round keys should be driven down 1/32" below flush with the gear. Any burrs set up should be filed down smooth. If the bushings in the idler gear show signs of wear, they should be removed from this gear, with the special tool, J-1662. This same tool may be used to replace these bushings in the gear. After the new bushings have been installed, they should be reamed to size, using KMO-349 reamer, Fig. 37, leaving a minimum clearance of .002" between the bushings and shaft for proper lubrication.	REASSEMBLING THE TRANSMISSION 1. Assemble the countergear front bearing and retainer to the case. The open side of the retainer should be toward the outside and its edge flush with the case. Place the countergear and shaft assembly in the transmission and assemble the thrustwasher and rear bearing as shown in Fig. 38. 2. For the purpose of checking the end-play between the countergear and the case without further assembly of the transmission, assemble the rear bearing retainer and gasket to the rear face of the case. Check the end-play between the rear thrustwasher and the shoulder on the countergear. This end-play should be from .015" to .045". If it exceeds .045" shim between the front countershaft bearing and its retainer until the end-play is within the above limits. 3. Place the idler gear in the transmission case and drive the idler gear shaft into position from the rear to the front, being careful to have the flat machined surface on the end of the shaft in a vertical position, and toward the countershaft. 4. Assemble the clutch gear and bearing and bearing retainer to the case, using a new gasket. Install the lock plates and capscrews, then bend up the edges of the lock plates against the hex. heads of the capscrews. Dip the main shaft pilot bearing in transmission lubricant and assemble it inside the clutch gear. 5. Place the sliding gears in the transmission, with the shifter fork grooves toward each other, and assemble the main shaft and rear bearing through these gears and into the case. 6. Assemble the rear bearing retainer and gasket to the case and tighten the capscrews securely. Place the transmission in two gears to lock the shafts and assemble the universal joint to the end of the mainshaft, using a shakeproof lockwasher, a flat washer, and a plain lockwasher under the head of the cap screw. 7. Assemble the speedometer driven gear and shaft. 8. Assemble the universal joint ball and collar to the rear bearing retainer. Transmission Cover Assembly 1. To disassemble the transmission cover, remove the two screws which attach the shifter shaft lock plate and remove the plate. 2. When removing the three shifter shafts from the cover, turn the shafts one-half turn to raise the shift lock balls out of the notches in the shafts, then push the shafts out of the cover and shifter forks, being careful not to lose the lock balls

	Fig. 37—Reaming Idler Gear Bushings

	Fig. 38-Countershaft, Rear Bearing and Thrust Washer