Chevrolet Light Duty Truck 1973 Service Manual page 241

Companion Flange
1 .
2
Oil Deflector
.
3. Oil Seal
4. Bearing Retainer
Shim
5.
Pinion Front Bearing
6
.
Collapsible Spacer
7.
Pinion Rear Bearing
8
.
Drive Pinion
9.
attachment points for suspension components such as shock
absorbers and leaf springs. A welded flange is provided for
brake flange plate attachment.
An overhung hypoid drive pinion is supported by two
preloaded tapered roller bearings. The pinion shaft is
sealed by means of a molded, spring loaded, rubber seal.
The seal is mounted on the pinion flange which is
splined and bolted to the hypoid pinion shaft.
The hypoid ring gear is bolted to a one-piece differential
case which is supported by two preloaded tapered roller
bearings.
10-1/2" Ring Gear Axle
The axle shown in figure 35 is of the full floating type
with hypoid ring gear and drive pinion. The full floating
10. Straddle Bearing
11. R ing Gear
12. D ifferential Spider
13. D ifferential Case
14. Differential Pinion
15. D ifferential Side Gear
16. Side Bearing
17. Side Bearing Adjusting Nut
18. Adjusting Nut Retainer
Fig. 35—10-1/2" Ring Gear Axle Cross-Section
construction enables easy removal of axle shafts without
removing truck load and without jacking up the axle.
The differential carrier is heavily ribbed to provide rigid
support for the differential assembly. Differential caps
are doweled to the carrier to assure correct alignment.
The straddle-mounted drive pinion is supported at the
front by two opposed tapered roller bearings. The pinion
straddle bearing is a roller bearing assembly consisting
of an outer race and roller assembly. A precision ground
diam eter on the pinion pilot functions as an inner race.
Side bearing preload and ring gear-to-pinion backlash
are controlled by side bearing adjusting rings threaded
into the carrier near the axle tubes. Pinion depth is
controlled by a shim located between the pinion bearing
retainer assembly and the axle housing.
REAR S U S PEN SIO N A N D DRIVELINE
19. Retainer Screw
20. Bearing Cap
21. Case-to-Ring Gear Bolt
22. Differential Cover
23. Bearing Cap Bolt
24. Cover Screw
25. Axle Shaft
4 -1 7
LIGHT DUTY TRUCK SERVICE MANUAL