[Humdingah]

I'm looking at the same thing and trying to decide between the 35x12.50x20 Mud Grapplers and the 37x13.50x20s. Looking at Nitto's website the 35s are actually 35.04 inches in diameter and right at 13.00 inches wide on a 10" rim. The 37s are 37.05 inches in diameter and 14.13 inches wide on an 11" rim.

I'm thinking the 37s at more like a 37x14.25x20 are going to be way too wide...that's a lot of cranking and you're likely still going to get some rub.

I'm sticking with the 35s.