Yep, mine was just the opposite. The back bumper is low and flimsy.
It's not square stock, it's just a single flat piece.
My sewer storage tube just fit between the regulator and the tank on the A-frame.
I am now putting some shelving in the closet over the bed and all should be good :-)
Next week could be nice camping weather here in Southern Ohio
2016 Toyota Tundra SR5, 5.7 V8