I saw the closed thread about putting 20"rims on a '99 Ram, which is what i want to do. I found a set of 13/16" Acorn nuts for 1/2-20 studs, Would I be better off using the 3/4" bulge nuts? The seat area appears to be about the same, although the bulge is much bigger than the 13/16 hex (appears to be about 7/8). The contact area on the bulge nuts I was temporarily using looks to be about the the same size as the shoulder of the acorn nut. Thanks for any help!