Ok, good deal, we're starting to get some fabriction input.
Absolutly, if there is someone with technical information on this type of fab work, I'm all for it. My pride doesn't step in front of my ability to learn something new.
To get back and to clarify my goal is to simply get rid of the badly weakened areas. Now, at the same time I don't want to see evidence of any fabrication when I'm done. Within the next couple nights I should post pics of these patches fully welded and finished to a point where the new and old metals show no welds between them. It'll be a seemless repair.
A fish plate, I'm not familiar with the term. This doesn't mean it's not the right term, just means I'm just a backyard guy who likes to fabricate metal. I do however have an idea of what your thinking. The idea that when two flats are butt welded, you would have a seperate plate that would span across both pieces being welded together and by welding this plate in place it serves to add to the strength of the butt weld and eliminate any flexing in the area.
As for a vertical weld, welding up and down, I can imagine it would create a weak spot in a area that will carry large amounts of weight. I could see a better design would be a the two pieces attached at more of an angle, it would spread the direct weight load over a larger area.
I'm mearly opening a discussion here.
Tonight we've got the same area, just more cut away. Looking closely at previous pics of this area you can see where the frame rails have become literally paper thin. Hang in there, the next pics will show these repairs welded and dressed where these will be seamless repairs.