In 1954 GM switched to a 5.25" pilot diameter on the hubs and 5.25" bore in the wheels, from 4.75" in earlier years. (see tech. tips) The hole pattern is the same. Those are the two wheels you have with the larger bore. I have two wheels like that and made two rings to sleeve them so to pilot the wheel on the hub correctly. The plates only go on the outside of the wheels with the radius turned out just under the lug nuts. 5/8 fine nuts from your local truck spring shop work great for lug nuts, because there is no need for piloting. Because the hub and center hole in the wheel pilots them. Hope this helps.
Last edited by Chris's 46 / 515; 12/09/2024 3:36 PM.
