Yes on this, I had a 5x5 on my 62 Cadillac with a 15x7 steel rim made by Kelsey-Hayes with drums on all 4 corners that was how it left the factory with what would be in todays tire size a P235/75R15 tire... I now have disc on all 4 corners, running a Kelsey-Hayes wire wheel 5x5 15x7 restored, with a set of Diamondback, with a 3" whitewall P235/75R15 mounted on them...Earlier GM full-size cars also had the 5x5 bolt pattern. I know from experience that '69-76 Cadillacs used it.