bullitt2343,
glad you posted, i forgot about this post, lol. actually i think i found a set of wheels that will work. according to a few vendors, the new bullitt motorsports 454 style wheels in 20 inches work onm the shelby gt500's. they are the bullitt style wheels that have the rivets in them if you've never seen em. they are a mix of teh foose and bullit style wheels. go to stage3motorsports.com, they have them if you are interested in checking them out. they dont have them listed under the gt500 but i called and asked them about it.