I put my 17 inch rims on my car and had the wheels balanced and mounted at my local firestone and there is a slight vibration still. I was told to purchace these rings for the hub or something that help. what are they and where can I get them from.?

 

you'll need 56.1mm x (?) hubcentric rings.
the question mark is defined by the size of your wheel's hub.
what kind of wheels are you running?

there are several sources in this thread (click)

 

the rims I bought have a 73.1 hub/bore size.... ???? HELP haha

 

holy cow! i think you're gonna need some custom ones.

edit: googled it and this old NAM thread popped up. also found this on ebay