I don't really know what series it is, I think 1 1/2 or 2 ton is a guess. I looked at the other side today and that wheel is just sitting on the cover. so I believe I need two wheels and a hub cover to start and 4 to do it all. Any Idea where to start to look? just for a grin rather than find the wright wheels way back when being one wouldn't lay flat they adjusted one tie rod all the way out and the other all the way in. I'm glad this thing doesn't go real fast!