Back when I pulled a bumper pull, if I was getting into manuveuring I would removed the bars(like backing in at the house). I'd stop up the street, remove the bars so I could back in easily without binding.
They have "give" for what I would call normal cornering, but if you get them too tight I think they could do just what happened to you.
I had the same type as you, just snapped into a small socket and had a little clip up top to hold them. Maybe the other design which slips up in a tube would be better? Or would they tear something else up?
Maybe it has to do with how tight you have them also? My one truck I would just use my arm to lift them to latch it as I just wanted to add some resistance to the bob/weave it used to get hitting bumps. My one ton I would use the cheater bar to pop it up.
I have turned tight enough that the tipups marked the bumper with sway cams.
If the chains are a little short on the tipups they will move the brackets or pop the chains, if they are loaded a broken chain will often take out the retainer catch on the top of the hitch. Dragging a springbar down the highway usually makes it useless.
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