Denny, My 2 cents also. I had p255 70 16 on my 3600 . They were on 16x8" rims they were 30 " tall and at the time I still had the 4:56 rear. Recently I was able to get a 4:10 and swapped the rims to the 8 lug fords 16 x6" and mounted p215 85 16 on them. same height 30 " I looked around for something less than 8 ply in that size but didnt see them. They steer nice but ride rough. I usually haul 6 bales of hay and 3 feed bags so I dont need the 10 ply either. good luck in your search.