Spicer driveshafts drove two Timken double-reduction axles with an 11.66&colon;1 final drive ratio. This lets the driveshafts be in line from the transmission to and between the axles. These were vertical-axle windmills, which had long vertical driveshafts with rectangle shaped blades. Dana-Spicer and Meritor supply air brakes, steering systems, driveshafts, and other components. The driveshafts were articulated with Tracta joints and epicyclic reduction gears in the hubs. Mechanical limited-slip differentials are also allowed and constant velocity joint tripod driveshafts are also used. Additionally, all drivetrain elements, in particular the transfer gearbox and driveshafts, can be built lighter. The rear differential was centrally mounted with two driveshafts transmitting power to the rear wheels. These joints are used at the inboard end of car driveshafts. Meritor supplies S-cam air brakes, steering systems, driveshafts, and other components. Frame assemblies and driveshafts are produced by Dana Holding Corporation. Mechanical limited-slip differential are also allowed and constant velocity joint tripod driveshafts are also used. This transmits power to driveshafts running to the front and rear trucks. The Marchant, therefore, has three driveshafts to feed the little transmissions. Two independent driveshafts deliver power from the engines to the transmission.