Great. I thought of going a size up but I'd need new wheels .After switching to 4.88 gears my mileage dropped from 15mpg to 13mpg with 285/75r17 bfg these were really close to 33".
I just switched to 35x12.5r17 and just got 16mpg on a trip to Brianhead Utah, from Vegas. It's up hill too. I'm happy.