On the old forum Joe wrote:

After searching through all of my photos I realize that I don't have one showing the bracket that attaches to the frame rails so I will have to take some new ones

I cut away the extra steel


shaped it in to place and stitch welded it together along with a full bead in the inside

Then I polished the outside bead smooth


my MIG work is not as elegant as your torch work, but it will do