That thing works like a champ, and the E-bay price is right $265 , I built mine after borrowing one from a buddy and taking it apart and copying it,we've used it to build a couple UMP modifieds,3 midgets out of chrome molly,6 quarter midgets(chrome molly), 1 go cart, and 1 Jr. dragster (chrome molly) and it's performed flawlessly.....