Here you go Ken, your choice of duals or singles.
http://www.outbacktoystore.com/1-16t...4WD-with-Duals
http://www.outbacktoystore.com/1-16t...h-Wide-Singles
Fred I have two Steigers myself, would love to see one of them converted someday. I have been wondering about a set of Stainless Chem Farm fertilizer tanks mounted to the front to mount the batteries leaving more room in the tractor for maybe a 3 speed.