If you just want to use your original hub caps they will fit on a 14" steel wheel from a '73 and later wheel. If that's the case you can upgrade to the LBP disc brakes & 8 1/4" rear axle. Then with a set of LBP 14" steel wheels you can use your original hub caps & swap over to the cool Hurst wheels any time you feel like it. If you're lucky you might be able to find a donor parts car & get everything you need.