The floor pan had a thin spot along with some pinholes in the driver side rear footwell. This is a common place for these cars to rust, as it’s the lowest point of the rear floor and becomes the bottom of a puddle should the car leak. And being a convertible, this car leaked.
A new floor repair panel was ordered from YearOne to replace the bad section.
The rusty piece was removed with a cutoff wheel.
The new panel was carefully trimmed to be a tight fit so that a butt weld technique could be applied. This would leave a seamless repair when completed.