Chevrolet Light Operator's Manual page 44

three forward speeds and reverse. It is of helical gear type
providing unusually quiet operation in all gears.
The gears are carburized for additional strength and long
life. The countergear is mounted on roller bearings. Ball bear-
ings are
used on
the clutch gear and mainshaft.
Description (4-speed Transmission). This sturdy synchro-mesh
transmission has increased durability and has synchro-mesh
action into second, third and fourth speeds using helical gears,
affording quieter operation and longer life.
The gears are drop forged steel, heat treated for strength
and long life. The clutch gear is supported in the case on a
ball bearing and the mainshaft is piloted at the front on roller
bearings in the clutch gear and supported in the case at the
rear by a large ball bearing. The countershaft is mounted at
the front in a roller bearing and at the rear in a large
ball
bearing.
Care. Chevrolet transmissions require very little care or main-
tenance. The lubrication level should be checked at regular
intervals and. lubricant added as necessary. (See instructions
in the Lubrication Section.)
Propeller Shaft and Universal Joints
Description. The lh ton models use one universal joint directly
bac~
of the transmission and a torque tube enclosed tubular
propeller shaft that
is
splined
to
the pinion shaft. The universal
joint is of the fully enclosed bushed type taking its lubrica-
tion from the transmission.
The
%
ton models use two propeller shafts and three uni-
versal joints. The front universal joint is of the fully enclosed
bushed type and .• is lubricated from the transmission. The
front propeller shaft
is
enclosed in a propeller shaft housing. A
propeller shaft bearing supPOrt assembly is located near the
rear end of
this sh~ft
and gives the drive line the necessary
support. This bearing support assembly is permanently lubri-
cated at assembly and requires no further lubrication. The
center and rear universal joints are of the needle bearing type.
They are open joints with a single lubrication fitting to provide
lubrication to all trunnion bearings through the drilled trun-
nion. The rear propeller shaft is of tubular construction.
All other models are fitted with tubular propeller shafts
and needle bearing type open universal joints having a single
lubrication fitting at each joint and drilled trunnions to distrib-
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