Originally Posted by SoftballJunnkie
J, so if im understanding correctly if the centerbore is greater then 66.56mm then I will need hub centric spacers correct?
So if its at 74mm I'll need a 10mm spacer to correct the issue?
You'll need a set of hub centric rings that EXACTLY match the center bores for the hub & the new wheels. Based on the info above, that would be ones with an ID = 66.56 and OD = 74. There are lots of sites that list these, in both metal & plastic versions. Most folks want the metal versions, but plastic (polycarbonate) is what you want to use to avoid any chemical corrosion due to dissimilar metals contact.
Once installed, the new rims will be centered on the hub. That way the lug bolts serve to only fasten & secure the wheel to the hub. You don't want the lug bolts having to also center the rims on the hub. Typically at higher speeds, the centrifigal forces generated by rotation will cause the rims to move and vibration occurs. Hub-centric rings are always required unless you plan to always drive less than 40-45 MPH! But it's a Crossfire!!! It won't do less than 55 anywhere!!!