Hughes Tow Master Torque Converters are used in many late model trucks, crew cabs, 4x4's and motor homes to increase towing capabilities. Hughes Tow Master Torque Converters will increase bottom end pulling power without sacrificing top end efficiency or lock-up. Hughes Tow Master Torque Converters can effectively increase your towing vehicle's fuel economy by 1-2 miles per gallon. Made in the U.S.A.