I have a '57 M45 gasser (I think it's the oa-331) that needs a new motor, thanks to me. Since I need a new motor, I thought it would be a good time for me to go diesel, and then I thought, why not go big diesel, and run singles on it. I want to put a 250 cummins in it and run the 14.00's on it, but I also saw a deuce that has 16.00's with a lift on it and extended tandem axle (hotroddeuce). Will I have a problem with the 250, what tranny would be best, should I re-gear, will I need to run longer lines, etc...etc...any advice will be mucho appreciated.