I am going to lower my truck back to stock in the front and put 3" drop shackles in the back. The BMF's I have a offset of 0. I have 305/55/20s on them right now and they already rub a little. I am thinking about buying 305/50/20 cooper zeons and I'm wandering if they will rub. I want to get some opinions on these tires before I order them.