78.3 wheel on 71.5 hub
 

Do you need hub centric rings for a wheel that has a center bore of 78.3 on a jk hub that’s 71.5? I’m going to buy a new set of wheels and need to know if I’ll need rings or if I’ll be ok

Nobody uses rings to center up the wheels on the JK. I know it's common with the Euro crowd but it's not something we bother with so long as the hub is large enough to go over your front centering piece and the rear flange, which it sounds like it is.