Knowing the position of the shock shaft and associated wheelend relative to the body of the vehicle is critical to the accurate control of a semi-active damper system.  Every OE semi-active vehicle on the market today utilizes a stand-alone sensor that measures the real-time position of unsprung mass relative to the sprung mass of the vehicle.  For an upgraded aftermarket or long-travel motorsports application, however, it is not always a simple task to find a suitable location for