bed mount question - bent frame from towing?

[padresag]

joe that is what I think that is what it is above the axle area. reinforcment strip would be a good term. it just fastens to the bottom of the plywood and sits off from the frame. as the other insulators collapse, it eventually resides on the top of the frame.
both my panel and my suburban have them there . it clears the frame on my panel but the insulators on the suburban are bulging out and that bar is resting on the frame.
this was explained to him on another site
ron