Remember the floor pan didn't end there.  In factory form, it welded to the that thick reinforcement on the underside and had no flanges.  The reason a lot of convertible sheet pans have the downward flanges is the underside of that reinforcement rusts.   Like your pictures, that is where the water would set and keep that area saturated.    I was able to repair both of mine with patch panels I made.   I should still have the pics. Edit:  I'm basically saying that inner rocker rusts right in that area on the bottom. 

A lot of people don't bother and just weld a short pan in, or cover the bottom area of the inner rocker and weld an upside down flange.

You can see on a full floor pan how there is no flange originally.   Just saying there are a few ways to fix it.

Last edited by Greg B (1/30/2024 7:46 AM)

RPM, aka Bearing Bob wrote:

Ya, I think you got real lucky on the lack of rust.

What is this thingy?

Probably hanger for original type transverse muffler that nobody took tome to remove when they converted to dual exhausr