Well, a whole kit would still be nice. I've read all kinds of threads about this shim, and that shim, and it can get confusing. I dread going over my 2005 that has 59,600 miles, and I don't know if the valves have ever been checked. I know the kits ain't cheap, but I do own 3 Rockets, so it might benefit me to own a whole kit of shims.