I rolled a bronco off the trailer doing 70mph a few years ago, rolled the trailer and the pickup too. My wife who was behind me said the bronco came off and cartwheeled hitting both the front and rear bumper multiple times on the corners. It broke the frame front and rear and dented the front bumper on the end as well as one of the smaller tubes that reinforced the main tube (old style prerunner bumper) On the rear it bent the tube slightly by the rear tire carrier. End of the story I cut heated up the rear and bent it back out, on the front I cut the reinforcement bar off the top on each side. Still running them today, they are hell for stout. On another note the rear prerunner bumper hangs down way to much and I plan either modifying it to move it up, or adding the tire rack and can/cooler carrier to a different homemade bumper (thinking stealth bumper)