UPDATE:
Cooper AT/3 is 31.2", 2469 load rated, 40lbs so not to bad on weight and optimum rim width is 7.5 inches.
UPDATE 2:
Falken Rubitrek 245/70/17 is a very good fit on a 17x7 and will work well on a 7.5, 114 XL rated, snow rated, according to their website pretty low noise, good all around street and off road capable, I am going to take a good look at them as have liked their tires quite well over the years.
The 255/70/17 is SL rated, weighs 3lbs more, 31.1" tall, .3" wider tread, I think the 245 is the better tire.
RUBITREK A/T TIRE | Falken Tire
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Original post, mostly
I like a little stretch to give better feedback, which is why I am looking into 245s as well.
I am looking into 17x8.5 or 9" wheels with maybe a 275 wide but have to see what tires I can find first.
I have the original 17's, Tundra split spoke with AT Tires and yesterday picked up a mint set of 8 hole take offs that barely were used. I might be selling some of these if not all of them depending on what tires and wheels I end up running.
I will add more as I find the info, tirerack is a great place for many tires but I often go to manf sites and when narrowing things down I compare both if available.
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2003 4runner LTD, V8, AWD, mild mods planned
2007 4runner LTD, V8, AWD, nicely modded, went to daughter when we went full time RV, had to have another one