Chrysler RAM TRUCK 2500 1994 Service Manual page 60

FRONT SUSPENSION AND AXLE 2 - 3
DIFFERENTIAL
COVER
FILL PLUG
IDENTIFICATION
T A G J9202-23
DIFFERENTIAL
COVER
Fig. 4 Model 44 Differential Cower
FILL PLUG
RATIO
TAG
MODEL
NUMBER
J9202-97
Fig. 5 Model 60 Differential Cover
gears. As a result, the pinion gears revolve with the
pinion mate shaft but do not rotate around i t (Fig. 6).
When turning corners, the outside wheel must
I N STRAIGHT A H E A D D R I V I N G
EACH WHEEL ROTATES AT 100%
OF CASE SPEED
P I N I O N GEARS ROTATE
W I T H CASE J93C3-13
Fig. 6 Differential Operation—Straight-Ahead Driving
travel a greater distance than the inside wheel i n or­
der to complete a turn. This difference must be com­
pensated for i n 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). I n 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 i n 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 < f c
100% DIFFERENTIAL
CASE SPEED
/
I N N E R WHEEL
9 0 % CASE SPEED
P I N I O N GEARS ROTATE
O N P I N I O N SHAFT
J9303-14
Fig. 7 Differential Operation—On Turns