I have a 2012 rubi unlimited with an AEV 2" lift. I also have the rugged ridge aluminum bumpers. The tires I have are 255/70/r17. It has been suggested that the biggest tire that i could safely put on would be 285/75/r17. It seems to me that it would not make a big difference in the looksof it. Could I safely go any bigger without having any rubbing problems?