Superior Driveline provides a multitude of products including; Drive Shaft Disconnect and Shaftmaster. The Superior Driveline Drive Shaft Coupling (DSC) allows RV'ers to tow their rear-wheel and four-wheel drive automatic transmission vehicles behind their motor homes with all four wheels on the ground - worry free. With the DSC there is no mileage accumulation on cable-driven speedometers. It disengages the drive train in 'tow mode' and the vehicle is towed with the transmission in Park. This means there is no rotational movement in the transmission, no wear, and tear on the transmission components and the speedometer drive gears are not turning. Modern electronic speedometers have now replaced the cable-driven units so mileage accumulation is generally no longer an issue. The Superior Driveline DSC saves valuable time and money by eliminating the need for a trailer or dolly and making the transition from tow mode to drive mode in minutes. The Shaftmaster remains the most powerful drive shaft manufacturing and repair machine in the industry. Its capable of handling driveshafts from the 1000 series to the 1950 series Spicer. The rugged ten ton hydraulic ram press provides a tight and true press fit for precision alignment. The Shaftmasters powerful 3 horsepower AC motor provides the necessary torque to spin shafts at road speeds. This same power is used to electronically brake the shaft at adjustable or pre-programmed deceleration speeds. A digital tachometer provides the operator with accurate RPM indication. The Shaftmasters advanced electronics never require calibration and they are designed to provide years of exceptional operation.