lots of rims have specific nuts, even rims from the same trucks/years. steelies vs alloys vs well u get it. i know over in the tundra world we have this issue when people swap and trade and upgrade. not knowing for sure what they "should" look like, if i were in your shoes, i'd just run to discount tire and tell them you got the new style rims and ask them to look at your nuts (hahahaha dayum i crack myself up) and see if they seat and fit correctly. they deal with all shapes and styles so they would be able to tell if they fit right. they may not be the actual "correct" ones that came with the rims but if the shoulder is at the correct angle, they can still work etc. if you ask a dealer, they'll probally try to sell you new axles or a new truck to go with the rims.
