I'm not repairing a dent... I'm repairing a rusted hole. There is nothing to which I will attach the corners. If I dont' fix it now, it will keep spreading and spreading. Also, it goes past just the corner there, it moves up the wheel well. I'm actually looking to replace a large section. There is the stupid "seat belt bolt compartment" that just holds salt and stuff inside that I'll be repairing, all along the lower edge of the fender and about 8" up the rear lower coner. This will be done on both sides.