I had always wondered if the 13" caps and the 14" caps were the same. I have never tried a 13" cap that looks like these on a 14" wheel but suspected they might be the same cap and the difference was in the wheel itself.
Yes and No...the wheels are different 13" and 14" but its the difference in the mounting clip measurements on the reverse side. These caps look identical from the front. If you measure the backside from mounting clip to mounting clip you will see a 1" or so difference. The 14" hub caps clips are almost near the edge/rim of the hub cap.
Can't believe thier still for sale...good luck with them at 'Nats!