Posting this directly from Topica since my email's not talking to it again... I'm trying to find info on how to convert modern tire sizes (215/75/14) to the old sizes (D75-14). I ultimately want to figure out what is the correct speedo gear is for my current setup. The wife and I went to the Herr's Cruise Night in Nottingham, PA last night w/ the Coronet and my Model T. I was trailering the T home and driving no more than 55-60 mph. She was following me also supposedly going 60 mph and fell back VERY quickly, so the speedo is most definitely reading fast. Anyone have any charts, websites, and or calculations they can provide to point me in the right direction? Thanks Bill M 65 Coronet 500 'vert Bill M 65 Coronet 500 'vert ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.