My 59 panel truck has a 235 with the stock 3.90 rear end and 3 sp tranny. It will cruise at 2800-3000 rpm max. A freind followed me on the freeway and said I was doing 63mph. I have 235 75 15" tires about 29" tall. I am looking for some tall skinny tires 33" I should be able to do 70mph if I can find some that fit without rubbing.
