4.88's and 31's (I'm currently using my old winter snow tires - 235/75R15's). FWIW, 4.88's and 31's are great - I'm going to regret putting on my 35's this spring. And this is with a standard tranny that came with 3.07's (almost 60% increase in gearing with the 4.88's). For the life of me, I can't figure out why people spend good money to go to 4.10's.