Well it seems that the area under the reinforcing plate was rusty so out it went. I'm going to the junkyard tomorrow to get a floor pan. The plate was not welded to the side of the floor closest to the door. I'm not sure if it's supposed to be but It defeats the purpose if it's not. It's easier to replace a big section of the floor than to keep making small patches. I'm also thinking about getting some subframe connectors to prevent any further issues.
