Okay, I got a 2003 Dodge Ram 1500 SLT 2x4. Stock. I'm about to put a 2" leveling kit on it. I need to know what the biggest rims and tires I can put on it without rubbing. I want 20" rims and 37"x12.5R20 tires. I know that is probably WAY too big for just a 2" leveling kit. Can someone help me what I am able to do. Thanks.