So I bought some 2011 stock take off your wheels/tires and the rear center cap won't fit over the hub and the front center cap won't latch onto my lug nuts.. I realize that I need spacers to get the center caps to fit right but what year lug nuts work with the 2011 center caps.. Mine is 2003 X 7.3 4x4 and I have my stock 2003 lug nuts on there now. Also what size spacer do I need up front to get a 37" tire to fit with a 4.5" lift.. These stock take offs are 18x8s..

 

Long shot here but I am going to guess 2011 lug nuts