This is a very informative thread. Thank you very much. One question I have, and i have been searching around but it doesn't seem to ever get mentioned. Everyone mentions running a 1/4" spacer for those looking for a "level" and larger tires to avoid rubbing, but what if someone wants to run a larger spacer, say a 1.5" with stock rims and a level? (Lets assume Bills at 2.1 or 2.8 since they seem most popular and standard 35x12.5 not the extra wide tires) Would this cause the need for trimming or cause other rubbing because it is bumping the wheels out further than the 1/4"?