I have z3 wheel flanges in my trailin arms on my e 30.... question is... without having to worry about brake rotor depth.. could somebody mount e36 flanges? I don't have to worry about brakes because this is for a trailer.... and the normal 3 Series flanges are more readily available as compared to this the z 3. I just want to be able to put a matching set of wheels on the car and the trailer