No transfer case. no gear shift lever, Simpler design, Lower initial cost – Spicer Specialty Axles for On_Off and Off-Highway Specialty Applications: Condensed Specifications User Manual
Page 3: Standard lube pump, Lighter weight, Lower maintenance costs

Fast fade housing design
improves chassis fit-up.
High entry design available
for greater ground clearance.
Long lasting Extended Service
Brake for longer life, less maintenance.
Steerable drive axles provide
optimum ratio compatibility for
superior drivetrain performance.
Unique front output design eliminates
awkwardness, complexity and additional
weight of transfer case configurations
while maintaining driver control.
Popular and proven tandem axle design
for optimum parts availibility, economical service.
Spicer
®
4 x 4 and 6 x 6 all-wheel
drive systems are ideal for a wide variety
of specialty applications such as mixers,
dump trucks, utility trucks, oil rigs,
loggers, yard spotters, wreckers, fire
pumpers, construction vehicles, and
crash trucks.
The Spicer design works particularly
well in short wheelbase vehicles because
of the more efficient driveline routing.
No transfer case. No gear
shift lever.
By dividing the power in the rear axle,
4 x 4 and 6 x 6 all-wheel drive systems
eliminate the need for a transfer case used
in other designs. The Dana Spicer
approach offers many advantages.
Simpler design.
Spicer all-wheel drive systems
employ unique transfer gearing in the
power divider to transmit power to the
steer-drive axle when needed. This design
eliminates the transfer case, extra
driveline, and shift lever required in
other systems.
Lower initial cost.
Fewer components mean less cost.
Installation is quicker and easier, too, with
two less yokes and less lube required.
Standard lube pump.
A gear-driven power divider lube pump
provides excellent lube flow to the inter-
axle differential for long life and reliable
performance for demanding applications.
Lighter weight.
Spicer all-wheel drive systems
eliminate the heavy transfer case and
associated brackets, shift lever, etc. you’ll
find on other systems. The result is a
system several hundred pounds lighter
for increased payload capacity and fuel
economy.
Lower maintenance costs.
With fewer parts and no separate
transfer case, Spicer 4 x 4 and 6 x 6
systems virtually eliminate the additive
maintenance costs typical of more
complex all-wheel drive configurations.
Cost Effective. Lighter Weight.
Spicer All-Wheel Drive Systems.