small bolt wheels (5 x 4" pattern) apparently are close enough to 5 x 100mm so they will bolt on. 1" = 25.4mm so 4" =101.6mm so the later K car, mini van wheels will bolt on the small bolt pattern cars. I don't think the opposite is true, that an early steel wheel will bolt onto the front driven axle of a mini van or K car or it's derivatives. there most likely would be interference with the late caliper, but i haven't tried it in the yard, either.