I'm sure a lot of you are wondering why do we remove all the sheetmetal. The quarters were replaced at one time and we did not trust the workmanship and once they were removed we found rust in the outer wheelhouse. The roof was removed because Mustangs are known to rust in the inner structure in the front by the top of the A pillar. In this case we were lucky and only had surface rust but over time would became holes. The other area on coupes is the sail panel inner structure and we did find rust. A little rust on the left side but the right side had a few small rust holes starting.