Chevy, Fnord and Dodge have the same 8 lug bolt circle diameter. The hub diameter is different on each. If I remember correctly, the FNord has the largest, the Dodge a little smaller and the Chevy the smallest. That means Fnord will fit all three, Dodge on Chevy and Chevy on Chevy only.
Atermarket wheels have a larger hole to fit ALL and is called lug-centric. The factory wheels are made to fit the hub and are hub-centric. Much stronger but generally ignored by the aftermarket because the consumer price considerations.
