Floor Pan Questions
Hope this helps in some way, Geof
Those pictures definitely help. What year are they from?
I can't make out any part of those creases in my floor. It looks like some big huge guy took out my seats and jumped up and down on my floor. There was also some work done with a BFH around some of the non-factory seat holes. I'm thinking that metal is stretched pretty good and wouldn't dolly out very well.
As for seat holes, my inboard holes match yours, as do my outboard holes for the bench seat. But my bucket seat outboard holes are further outboard than yours. I have another set of seats that I will check in the morning to see if they have the same track spacing.
I definitely have pinholes and worse in both rear pans. I also have holes behind the rear pans just ahead of the rise for the back seat. I think my options are to either replace the whole floor, or replace 2/3 of the floor including the area under the front seats plus the rear pans. So the trade off would be a but weld the width of the car versus a lot more spot welds and remounting of the automatic shifter.
I do have a lot of dents in the sub frame and cross member, probably from jacking up the car. If the floor came out it would be a lot easier to fix all those dents.