On my 70 Challenger, I have a hole about the size of an orange behind the wheels and a hole about the size of a dime in front of the rear wheel well. Has anyone used the patches that they have out to patch the area up? I hate to replace a whole quarter for that amount of rust. Also, has anyone ever replaced a trunck extension without removing a quarter panel? It looks like the trucnk extension rusted out which limited the damage to the outer panel.