Don't worry (actually I shouldn't worry). They only fail for unintentional holes as long as I can convince them that the other holes are intentional, mostly. They also fail if the 2 inch diameter drain hole is removed from the spare tire well.bugimike said:Rust on the edge of a rotor seems a bit much though!!! And to fail for something I have intentionally done (punch a hole through a low spot in the floor for drainage) also seems over the top!