Chevrolet Light - Rear Axle

ute lubricant to all trunnion bearings. Th e short wheelbase
C.O.E. has but one drive shaft and two universal joints, while
the 2 ton
179" wheelbase model and the long wheelbaseschool-
bus chassis have three propeller shafts and four' universal joints.
All
other models have two propeller shafts and three univer-
sal joints.
Care .. When the universal joints are lubricated regularly as
instructed in the lubrication section of this manual, they will
require very little other care or maintenance. The open type
universal joint " U" bolt nuts should be checked occasionally
to
make sure they are tight.
REAR AXLE
Description (%.Ton). The % ton rear axle is of the semi-float-
ing hypoid gear type. The pinion shaft is supported by a large
roller bearing at the pinion end and a heavy double row ball
bearing at the front end. This ball bearing takes the thrust
load . The differential is mounted in the carrier on two barrel
type roller bearings. A sturdy two pinion differential is used.
The axle shafts are supported on roller bearin gs in the end of
the housing. The shafts are locked in place by "c" locks which
fit
in grooves on the inner ends of the shafts and a thrust block
between the ends of the two shafts.
Description
(%, I, Ph: and 2 Ton). These models all use a
sturdy full floating rear axle having straddle mounted pinion
bearings, a
four pinion differential and hypoid ring gear and
pinion. An adjustable thrust pad is placed back of th e ring gear
in line with the pinion to avoid any possibility of distor-
tion when star.ting under hea vy loads. The differential is
mounted in heavy duty barrel type roller bearings. The bear-
ing caps are piloted to the carrier by sleeve dowels to provide
additional rigidity.
Description
(2.Speed Axle). The two-speed axle is of the
double reduction type having a hypo id ring gear and pinion
for
the first reduction (fig. 45). The ring gear is mounted on
a double reduction shaft having a high speed and a low speed
floating
reduction pinion that meshes with a respective high
and a low speed reduction gear that is bolted to the differential
case.
An internal splined shifter sleeve fits on splines at the
center of the double reduction shaft and can be shifted in either
direction to engage splines on the reduction pinions to lock
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