Funny you should be looking at the Toyo M/T's. I just got myself a set a few days ago in 255/85R16. I really like them alot. I guess I lucked out. My friend at Les Schwab said they don't carry many in that size at all.
I had the Duratracs in 285 and I just didn't like that wide of a tire. The 255's look great on my truck, in my humble opinion.
The 255 Toyos and the 285 Duratracs weigh in about the same. The Toyos really make my steering react quicker, I guess because they are not as wide. Not much noise at all, but you can feel the lugs when coming to a stop. The Toyos are taller also. I measured the difference, but of course I did not write it down, and now I forgot. I did drop about 200 rpm at 60 mph with the Toyos as opposed to the Duratracs. I have 4.56's.
I have to get some pictures up. I haven't even taken any yet. Have to wash the truck first!