Towing Parts Outlet winch hoist is designed and built to be used in any commercial, industrial high pulling jobs. The hoists are so durable and many of the hoists built in 1960 thru 1980 are still usable after many decades. There are are thousand of the out there that have been used more than a decade. The cable hoists are to bend upon 20 percent to 50 percent overload. That is a key safety factor and will stop the user from further injury. Parts can be easily replaceable when malfunctioned. Please contact customer service at Towing Parts Outlet for further assistance. Just like any other equipment, cable hoists require maintance. Tool inspection is needed each time. Bushings must be lubricated. For corrosive setup, marine grade hoists must be used.