Well here's the deal...The later model wheels are Not hub centric also have a larger lug hole opening.....On the rear of my truck the inners are the original split rims which through the hub and lug holes carry the weight of the truck....The outers are the later model wheels and are basically only held in place by the taper of the lug nut.... I have enough split rim & later wheels but just need to know how other people were able to use the later model wheels on a split rim truck....