My rear bench seat is mounted!!! I still may have a friend weld up a support for the foot rest just to make it more stable. I am not a light person bout 225# and it didn’t move much when I stepped on it.
I used 2 u bolt to fasten it on. I had to add a piece of 3/4” plywood under it to level is out where the metal was under the seat. I also modified one of the unused angle iron pieces to give the u bolts more stability.
Seatbelts for my kids so they don’t mess around while putting around the campgrounds.
I can still use the hitch too with the 1 1/4- 2” coupler. Just don’t want to put to much weight in it or things could bend. (I have a tow dolly I can use if I have to move a heavy trailer!).