Well I was gazing under my hood tonight. Right under the brake Master Cylinder ther is some rust, I think alot of stangs have this rust. Its at the bottom of the shock tower. Well i was feeling around under there. I guess its the frame rail under that, its like peeling. Its solid from what it feels like but its starting to crumble. I dont know what to do. I just got new 1/4 panels put on this thing, and was hoping for new paint this fall. Is this repairable?