I just bought a '07 F250 4x4 crew cab diesel that I will use to pull my 10,500lb toy hauler. The truck has a 4" lift on it that appears to be installed properly and in excellent working order; truck only has 31,200 miles. Problem with it is that it needs new tires sooner rather than later. It has 325/60R20 tires on it right now and they fit the truck proportionally well; don't want to go shorter. Also I want to go with a 10 ply/E rated tire that can comforably handle the weight of my trailer. I've looked on the web and found some nice tires, trouble is I have no experience with any of these tires...that's where you guys come in. Any info you may have on a tire please let me know what ya'll think. The choices are:(click the name to go to the tire) Goodyear DuraTrac Pro Comp Extreme AT Mickey Thompson Baja ATZ Hankook Dynapro ATm RF10 Pirelli Scorpion ATR All these tires are equivalent sizes; 325/60R20 is about 35/13.50R20, all are E rated.