255/70R16 is a stock size that came on explorers, and that is a 30.2X10 inch tire, just so you are aware.
How aggressive of tires do you want? Are you looking for something that is going to kick ass and take names off road, or do you want something with good road manners that you can go off road with?
I've got Dynapro ATMs on my explorer, and they are super quiet on road, and so far, they have been doing great with any of the mild off-road stuff I do. But, if I were ever planning on driving in stuff other than fields, pastures, gravel pits and that type of stuff, I would have probably gone with something a bit more aggressive, like the KM2s. The Dynapros however did really well with the extended winter weather we had here, where it kept switching back and forth between winter and spring, and I didn't feel like putting on my snow tires since I had no idea when it was going to be winter and spring, and how long either of them would last. When you bounce back and forth between half a foot of snow and ice on the ground, and 70 degree weather in the same week, for several weeks on end... you kind of won't be in the mood to burn up perfectly good snow tires.
Duratracs are probably one of the best options. They are a light truck rated tire, and they still have great road manners, despite being a fairly aggressive tread. I actually regretted not spending a hundred bucks more and getting them instead of the Dynapros I have. But, I do take solace in the fact that the Dynapros go down the highway almost like a highway tread as far as noise and road manners go. And considering all the highway driving I do, I can live with my decision.
