I was searching for 255/75/17s and this thread came up and it was very informative. From reading this thread, I learned that the FJC rims push the tires out almost 1" and this makes for a more stable feeling ride when lifted 2" inches. Does that about sum it up? I happen to have a set of FJC rims that I wasn't sure what to do with but maybe I'll slap on my new 255/75/17s on them and see how it goes. As long as I'm not flinging mud on the side of my doors, I'll be a happy camper.