Swapped the street tires for a set of Bridgestone Dueler AT, in the 245/70/16 size. According to a general metric tire converter, my factory 255/65/16's measured in at 29.1x10x16. The new Bridgestones measure in at 29.5x9.6x16.
Slightly taller, but skinnier.
I was slightly concerned I would lose some of the peppiness of the Nissan motor, going with the somewhat taller tire. I figured the skinnier tire would offset it, and it did. I am seeing the same mileage overall, and it still has the 'get up and go' that make driving the Nissan enjoyable. I am really pleased with the Bridgestone tires, and I even took them up to a lake last Sat. with 4wd engaged. I had driven the road before the suspension and on the stock size tires, which was fine, but now having the suspension in place and the new AT tires, it made all the difference. I had -no- tire slippage at all, and the little extra height was nice as the road is extremely rocky.