Sorry new here to be more specific I have a 1971 Buick gsx that I'm trying to install a front spoiler to. I saw a tread under chassis restoration and there was a diagram http://www.v8buick.com/show thread.php?269895-gsx-spoiler&highlight-spoiler+mounting+diagram but nothing comes up. If anyone knows were I can go to get the diagram I might be able to install it today thanks