We are still working on the wheels. I'm not alone anymore. This is Cameron sorry i missed the past few weeks I got my tonsils removed. This is Ben I also missed the past few weeks because I was helping Cameron. In the rear end we have the Wheel, bearings,The things that hold the bearing in the wheels, and we have the axel. I would like to know if we are missing any pieces. What keeps the wheels centered on the axel. Can someone send me a picture of "their rear end" or tell us what we are missing. This is Sam and I have a joke for you. Do you know why you can't have a 12 inch nose?... because then it would be a foot.