Unbelievable! Got new wheels for my Jeep JK and the hub was slightly smaller than the wheel bore. While it's technically more "stud-oriented" than "hub-oriented", it's definitely always better when it fits right. I first went to a machine shop that made a gasket/adapter/hub ring for $25. Really good deal for precision work, but then I checked out Revain (don't know why I didn't do that right away) and there they were. Received them quickly and they went straight, perfect fit! I don't know why wheel manufacturers don't just ship them with their product so easily and so cheaply.