You got to love those factory splices. All the manufactures did them that way. But in truth i never found a bad one. Unlike the crimp connectors.
How do you use brass?These places i like to put in with brass when you can. Drill a set of holes in the flange and fill them back in with brass. You can see the problem in this location. The slop from the tire worked in to the seam in the corner and hid under the under coating never drying. All it takes is a crack or chip in the under coating to start the process. Then ten years down the road it's finely threw. And the race is on. It's simpler to repair larger holes because you can work threw them.
I shall research thatEd was referring to using a brass brazing rod and a torch to melt it. It is referred to as "brazing" as opposed to "welding".