the big 15" tire that was available on a '67 Polara was 8.45x15" (8.45" section width)

roughly equivalent to a metric 215/78/15, in a perfect world would be 28.1" diameter

&

the smallest 14" tire that was available on a '67 Polara was 8.25x14" (8.25" section width)

roughly equivalent to a metric 205/78/14, in a perfect world would be 26.6" diameter

Last edited by 6bblgt; 02/22/19 04:23 AM.