Agreed Grigg. I met a guy who put 70 series 19.5s on his truck. He said you could barely turn the front wheels. Tall and skinny is the answer. I just picked up 6 new tires on Saturday. Chinese but well made. 12 ply radials. Made by a company called Double Coin. Still looking for rim No. 7 spare. Best - Joe

1947 - 3800 dually known as "Deadwrench"
Link to a few photos

In this world there are givers and takers. The takers eat well, the givers sleep well.