Since the mid 1980s, Unverferth began desigining and manufacturing MFWD T-Rail duals with their easy-on, easy-off attachment. As farmers recognized the dual advantages of front-end duals,they sought more permanent mounting for year-round use. Unverferth direct-axle MFWD duals fill this need using a bolt-on spacer and factory-style wheels for maximum versatility. And, they look identical to the original equipment style.