I used 20 gauge which on some gauge tools read as .0375 which is similar to what the factory used on their 64' AFX cars. You probably can not see it clearly on those black and white photos of mine, but just remember that once you introduce a bend or a edge to any flat stock sheet metal, it work hardens and becomes stronger. This is especially beneficial when working with thin gauge aluminum. Besides that Grille cross brace, the vertical braces and stone guard underneath are also Aluminum. The hood latch/levers and other misc stuff are no longer needed because the hood pins take care of that.
