Medium-duty and light-duty tow trucks are equipped with a modern wheel-system, which eliminates all tow truck and vehicle contact with the exception of the tires. Your vehicle is lifted off of the ground by securing either the front two or back two wheels. Light Duty vehicles are Cars, SUVs, Vans & Minivans, Pick-up trucks, Motorcycles and Small trailers. Medium Duty vehicles are listed under Trucks.