JB weld pits in floor pan?

Just replace the whole pan. Trust me on this. I tried to short cut just the problem areas in my trunk and I wound up paying more to do more work, only to wind up with a crappier job overall.

The process of welding in a larger piece of floor over a smaller patch is the exact same. Only difference is you have to weld and grind a little more but that's the easy part when you're already on the home stretch. The fitting and prep before hand basically takes the same amount of time either way so you might as well just do it all the first time.