Our lug pattern is 5 x 120mm, and a Camaro or Firebird is 5 x 4.75in. So if you convert 4.75 inch [international, U.S.] = 120.65 millimeter, does that .65 of a millimeter hurt us or make that much of a difference? Let me know what you all think. How big is .65millimeters? Small I would think.