Farmer Rock
just a fella' without a 10mm socket
My 93 CC had terrible frame flex, mostly because I took it off road loaded very often. Everyone thought I bent the frame at some point.
As for the hitch, my truck had the exact same setup, notched channel welded on top of the frame. It had been used for years, but just seemed to sketchy if something was to happen. I had plans of plating the sides of the hitch. Bolted vertical on the frame, and welded to the channel.
If you plan on keeping it, that's probably the best way to go, it's not gonna hurt anything.
Now welding the bed to the frame, that's a whole nother' level of Rube Goldberg.
Rock
As for the hitch, my truck had the exact same setup, notched channel welded on top of the frame. It had been used for years, but just seemed to sketchy if something was to happen. I had plans of plating the sides of the hitch. Bolted vertical on the frame, and welded to the channel.
If you plan on keeping it, that's probably the best way to go, it's not gonna hurt anything.
Now welding the bed to the frame, that's a whole nother' level of Rube Goldberg.
Rock