Billet Wheel adapter ?

Once again this is completely wrong information. The hub centric Chrysler uses is 2.805" [ 71.25mm ] DIA not 71mm . That would be a .010" interference if you used 71mm. If the hub in your rims were ordered with a 71mm bore, and they don't seem to slide over the hub centric on the axle or rotor... that would be why.

Some aftermarket manufacturer's don't give a **** and they just make the size under whatever Chrysler used, so they don't have parts sent back and your rims always fit. But you aren't using the hub centric to center your wheels and they could vibrate. That's because if the hub centric is say 70mm and you rim is for ***** and giggles is 71.25mm, your wheel could out of concentricity +/-.025" when bolted on.

If you are battling a vibration that you notice comes and goes when you put on or take off your wheels, that's usually the problem.