POWER SYSTEM OPERATION (Contd)
Powertrain System Operation.
The powertrain system is the same on all models in this manual except the extra-long wheelbase models
which have an additional propeller shaft and center bearing. This system transmits engine power to the axles to put the
vehicle in motion. Major components of the powertrain system are:
ENGINE - Provides power needed for powertrain component operation.
TRANSMISSION - Adapts engine power to meet different driving conditions.
CENTER BEARING - Provides support for propeller shaft to decrease vibration and wear on universal joints
(M927/A1/A2, M928/A1/A2, and M934/A1/A2 series only).
TRANSFER CASE - Distributes power evenly to front and rear axles.
UNIVERSAL JOINTS - Connections between two propeller shafts that permit one to drive the other even
though they may be at different angles.
DIFFERENTIALS - Distribute power to left and right axle shafts.
AXLES - Transmit power from differentials to rotate wheels.
PROPELLER SHAFTS - Serve as driving shafts that connect the transmission to the transfer case and the
transfer case to the differentials.