That's tough to say. I own that lift and I think you might be able to squeeze them under there without trimming. My 31's fit just fine under there with no rubbing issues. And as for the lift sitting higher, yes it will sit about 4" or so. When i first installed mine it sat around 4.5" and now since its settled in it sits about 4".

 

The thing about rough country.. is that it's a lot like the rest of the Jeep--not perfect, but has a set of known issues. Rough Country does not make a superb product. They make an OK product. And sell it at a corresponding price. And back it up with good customer service. It's a great starting point. Another take I've seen is that since they sell an entry level product, it is often sold to novices who do a crappy *** job of installing it, and suspension is not a set of components that take abuse well when they've been compromised by some idiot with an impact wrench.

 

This is with 33" A/T with the RC 3" AAL, and bushwackers with the fenders cut in behind. The only rubbing was at full compression on the rear of the front tires.