You can only use a 2pt tiller on a tractor that has the 2pt bracket that matches the tiller.Sometimes when adding a 3pt hitch to a tractor that came with 2pt tiller, it is necesary to remove 2pt bracket as it is in the way of lower arms or sway limiters.Most 2pt tillers can be converted to 3pt ,but its really not cost effective as it requires fabricating brackets for lower arms and top link.Eugene is right that you can remove lower arms and use 2pt, but only if your tractor still has 2pt bracket on it.