1942 - 1947 Chevrolet Shop Manual



	4-8

	semble the propeller shaft assembly, driving it down until the bearings are seated in the housing. Drive by using a drift in the 7/8" hole in the pinion and NOT on the pinion teeth. 3. Check through the bearing lock screw holes to make sure that the lock sleeve is in the correct position up against the back of the front pinion bearing. Install the three tapered lock screws and draw them down evenly and tightly. Tighten the lock screw lock nuts. Ring Gear and Pinion Adjustment 1. Install the differential case assembly in the carrier and then install the adjusting nuts, taking care to slide these nuts alongside the bearings so that the threads on the nuts fit into the threads of the differential carrier. Install the bearing caps, making sure that the marks on the caps line up with the marks on the carrier. Tighten the capscrews until the lock washers just flatten out. NOTE—This adjustment should be made only with the third member assembly out of the rear axle housing.	nut comes to a definite stop). Then tighten the right-hand nut from a minimum of one to a maximum of two notches more, to a locking position, Fig. 13. 4. Mount a dial gauge on the carrier and check the back lash between the ring gear and pinion, Fig. 14; this should be from .005" to .007". If the back lash is more than the above, loosen the right-hand adjusting nut one notch and tighten the left-hand adjusting nut one notch. If the back lash is less than above, loosen the left-hand adjusting nut one notch and tighten the right-hand nut one notch. 5. Tighten the bearing cap bolts securely, then recheck the back lash. Install both adjusting nut locks. 6. Assemble the third member assembly to the axle housing using a new gasket. Lubricate the hubs of the differential side gears with hypoid gear lubricant and install them in the differential case. 7. Install the axle shafts, making sure that the longer shaft is used on the right-hand side, and install the "C" shaped axle shaft locks. Spread the ends of the axle shafts to make sure that


	Fig. 13- Adjusting Ring Gear and Pinion Back Lash 2. Loosen the right-hand adjusting nut and tighten the left-hand adjusting nut, while at the same time turning the ring gear. Continue tightening the left-hand nut until all lash is removed, then back off the left-hand nut one notch. 3. Tighten the right-hand adjusting nut snugly (this position may easily be determined as the
		Fig. 14—Checking Ring Gear and Pinion Back Lash the shafts, locks and differential side gears are in positive contact. Roll the two differential pinions into place and install the axle shaft spacer, pinion gear shaft and lock screw. Check the clearance between the end of the axle- shaft and spacer— this should be from a free fit to .014", Fig 5.