The 67's used a 7.75X15 Redline In 66 they were Goldline Those tires are what would be correct for a 68 or 69 Z28 I do stand corrected on my 70' the sticker says Firestone wide ovals The 72' 2top LT1 4 Speed that I had, had the Goodyears on it I wish I still had them both The $$$ are really going up on them now