Purchased this to move my 4,000 ln Springdale travel trailer on flat ground. Bracket setup only thing I was not happy with. Got a bolt that used hex wrench to tighten , and hold mover stationary in bracket. Found that by lowering tongue of trailer as low as possible , there was less problem with jack moving in bracket with better results. On gravel put 2x6 under wheel to keep it from digging down in a hole. Amazing torque, once a figured out best way to use it, very happy with results.