255r60-15's on a '70 Tempest with no rubbing issues anywhere (27" diameter). The 15x7 steel wheels are older aftermarket with a 4.5" backspace. The 245R60-15 tires are closest to the G60x15 Polyglas GT's/Wide Ovals. 235R60-15 will look short in '70-'72 A-body wheel openings IMHO.
Dennis
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