There is alot of discussion on the tire sizes of the 4x4s but what about those of us with 4x2s. What is the biggest size we can put on with and without the RR lift without the rubbing? I assume it's different than the FDII but is it different than the FDIs? I'm looking particularly for those of us with stock 17"s. Mine came with 215/60/17s. Can I bump them up to 235s or 245s safely and if so how much more ground clearance would that add?