Im looking at getting new tires before the next trip to Moab. Ive been trying to find 31x12.5 for the 16" wheels, and nobody has them!! super swampers is the only ones and i really dont want those. i already talked to discount tire, tire rack, and les schwab and neither have a 31x12.50... so it looks like my only option is to go metric. im looking for a mud terrain, good wear, noise isnt that bad of a problem (as most radial MTs are fairly quiet), good traction for off road (sand, mud of course, rocks, loose dirt, the usual). any suggestions?