Chevrolet 1980 Light Duty Truck Service Manual page 329

1. Companion Flange
2 . D eflector
3 . Pinion O il Seal
4 . Pinion Front Bearing
5 . Pinion Bearing Spacer
6. D iffe re n tial C arrier
ball bearing.
The differential is a conventional four-pinion type.
Thrust washers are used between the side gears and case and
also between differential pinions and the differential case.
A thrust pad mounted on the end of an adjusting screw
threaded into the carrier housing limits deflection of the ring
gear under high torque conditions.
7 . D iffe re n tial Case
8 . Shim
9 . Gasket
10. D iffe re n tial Bearing
11. "C" Lock
12. Pinion Shaft Lock
Fig. 4B-4-8-1/2" and 8-7/8" Ring Gear Axle Cross-Section Typical
13 . Cover
14 . Pinion Shaft
15 . Ring G ear
16 . Side G ear
17 . Bearing Cap
Screw
18 . A xle Shaft
Involute splines are incorporated in the axle shaft
flange and in the wheel hubs. This design provides for the
driving torque to be transmitted from the axle shaft to the
hub through the mating splines.
REAR AXLE 4B-3
19. Thrust Washer
20. D iffe re n tial Pinion
2 1 . Shim
2 2 . Pinion Rear Bearing
2 3 . Drive Pinion
LIG H T T R U C K SERV ICE M AN U AL