Rob: Here are pix of the caps and wheel (this is my spare, so the paint is a little bunged up). The modification consists of a metal collar that is tack-welded to the flat inner surface of the original or repop hubcap. The collar fits very tightly into the center of the new wheels and the bumps on the wheel fit into the groove in the collar Hope you can see how. I obtained these from Obsolete Chevrolet 800-248-8785. I dealt with Rick, if he is still there. The modifications were done by the same people in CA who sold the wheels. The modification was $15/wheel, including shipping back and forth to CA.
Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6 So it looks pretty slick. Basically a metal ring is scabbed on top of the rim and a matching collar for the cap is scabbed on the cap so that it will just sit on top of the rim.
