67blacksheep I know the wheels you are looking at might be different from these, but to get these to fit we bought 6 lug wheel spacers found here
http://www.ebay.com/itm/6x139-7-to-6...-/181035692411
might not be the right ones for you, just need to measure them. they bolt on to your existing lug nuts then we just bought 2000 Tahoe lug nuts to screw on the center caps