Vapor - Looks like the original size was 8.00x14 and todays replacement tire should be 205-75R14. It has a diameter of 26.1" - Hope this helps. Have a great Tbird Day!!vapor said:Does anyone know the factory tire size on a 1963 Thunderbird. I have found that is states 8.00x14, but I am trying to find out how tall the tire would have been.
Thanks
Vapor