for size and offset http://www.f150forum.com/f4/tire-whe...04-08-a-24510/
i have had a few different ones...
toyo open country mt's wear great but they are quite agressive and at very low speeds you can feel them on the road. low noise.
goodyear duratrac. seem to wear pretty well, no road noise and can't feel them on the road
dirk cepek fun country at's. a little road noise. wore ok, terrible tread compound in cold contitions. they would turn into rocks and i have no traction.
bf goodrich at's didn't like the wear but the rest was good.
super swampers (on a jeep) can't remember which one but i only got maybe 1.5 seasons on them and they were worn out. lots of road noise.