speed

distance

engine RPM

fuel consumption

engine - drive shafts - clutch - main shafts - counter shafts - final driven gear - wheels

engine - clutch - main shaft - counter shaft - final driven gear - drive shafts - wheels

engine - clutch - counter shafts - main shaft - final driven gear - drive shafts - wheels

engine - main shaft - counter shaft - clutch - final driven gear - drive shafts - wheels

engine

rear axle

propeller shaft

differential

vehicle speed

torsional vibrations

jerky starts

none of these

steel rivets

brass rivets

aluminium screws

steel screws