Dodge RAM TRUCK 1500 1995 Service Manual page 78

B R
FRONT SUSPENSION AND AXLE 2 - 3
DIFFERENTIAL
COVER
FILL PLUG
IDENTIFICATION
TAG
DIFFERENTIAL
C O V E R
J9202-23
Fig. 4 Model 44 Differential Cower
FILL P L U G
MODEL
N U M B E R
J9202-97
Fig. 5 Model 60 Differential Cower
gears. As a result, the pinion gears revolve with the
pinion mate shaft but do not rotate around it (Fig. 6).
When turning corners, the outside wheel must
IN STRAIGHT AHEAD DRIVING
EACH WHEEL ROTATES AT 100%
OF CASE SPEED
PINION GEARS ROTATE
WITH CASE
J9303-13
Fig. 6 Differential Operation—Straight-Ahead Driving
travel a greater distance than the inside wheel in or­
der to complete a turn. This difference must be com­
pensated for in order to prevent the wheels from
scuffing and skidding through the turn. To accom­
plish this the differential allows the axle shafts to
turn at unequal speeds (Fig.7). In this instance, the
input torque applied to the pinion gears is not di­
vided equally. The pinion gears now rotate around
the pinion mate shaft in opposite directions. This al­
lows the side gear and axle shaft attached to the out­
side wheel to rotate at a faster speed.
OUTER WHEEL
110% CASE SPEED
AXLE <t
100% DIFFERENTIAL
CASE SPEED
/
INNER WHEEL
90% CASE SPEED
PINION GEARS ROTATE
ON PINION SHAFT
J9303-14
Fig. 7 Differential Operation—On Turns