What would you say was the most common wheel bolt pattern during the HAMB's focus era? 5x4¼"? 5x4½"? 5x4¾"? Or perhaps a decade or even two decades later? I suspect that the range among US manufacturers remained pretty much constant for a long time, until they went to large front-drive cars in the '80s, with 5x100mm and such patterns. The reason I ask: if I had no prior constraints as to a bolt pattern, which bolt pattern would give me the most wheel options in, say, a '60sish idiom? Then I could research and spec my hub/axle details according to that. The automotive world is indeed going to hell in a handbasket, but there are occasional glimmers of light among the doom and gloom. One is the use of 5-bolt wheels on smaller cars, probably because it is today considered quite acceptable for a small car to weigh as much as a main battle tank. It means that there are at least a few raidable bits and pieces available at parts counters.