I am the second owner of this unit. I do not have a manual or official paperwork on the unit but with the help of the Web I think the model is PE 201 and wad made 2003-2007. This unit will attach to an atv with a standard ball hitch or a tractor with a 3 point system. I bought it, lost my hunting lease and the only time I got to use was to turn my wife’s garden over last spring. Always stored indoors. It’s taking up too much room and, need it gone.