I have the calmini lift with 31's on xe wheels. :I have not had any rubbing at all. I just dont think that the 31's look right. I have plenty of space and would even go as far as to calling it fender gap. I am looking to upgrade my wheel set as well, and was wondering if a 16 x 8 with 265 x 70s would look a bit better or fit the truck more. As it sits now it looks a little silly in my opinion.