Looking for suggestions on off-road tires for my 04 F350 CC longbed SRW. I am looking at putting on 38s on the truck that will last alittle longer then the Hankocks I have on there now. They only lasted 9000 miles and were rotated twice within that time. 1 option I was looking at are Super Swamper TSL's. So any imput would be great, thanks.