Here's some pictures of my rail and trunk pan section replacements. Yes, I know, I'm not the greatest MIG welder in the world. But in my defense, a couple of my patches should have been bigger to get out into cleaner metal, and once again I was welding outside, as usual. Were this some kind of show car I probably would have needed to buy a full trunk pan, drop offs, and wheel tubs. But, it's not a show car, I'm not rich, and it seemed like a shame to replace whole panels when 90% of them were good. And thanks to the factory's liberal use of seam sealer, most of the ugly looking stuff gets covered, which is why I didn't grind it all flush. Some of the rust on my car is "typical", some is not. Some of it is very localized, having to do with the rodents that lived in it at some point in it's life using the factory internal bracing to makes homes, ie, stuffing old carpet into the compartmentalized sections of frame, which then rusted out in very specific segments, while the sections on either side were fine.
What I started with