I'm just wondering if anybody has swapped oem wheels from another model/brand and what if any fitment issues have they run into. I really want to step down to an 18" wheel and dump these 20" boat anchors, but the wife saw the price tag on the wheel and tire package I was looking at and about had a heart attack. I'm seeing zip locally for Silverado/Sierra take-offs so I'm looking at order options and wondering if anybody else has found something that works/doesn't work (hub size, etc) before I go too far down this rabbit hole.