I've got no connection to this, I just read this forum, thought this was interesting as I also own a large Chrysler from this era. The bumpers in '73 (as if they were not strong enough) were strengthened even more with 1/4 inch stiffener plates probably to satisfy the 5 mph bumper requirements.
https://www.forcbodiesonly.com/mopar-forum/threads/viral-trending-73-nyer-accident-photo.91674/
Better photos here:
https://www.forcbodiesonly.com/mopar-forum/threads/saw-this-on-moparts.91672/
https://www.forcbodiesonly.com/mopar-forum/threads/viral-trending-73-nyer-accident-photo.91674/
Better photos here:
https://www.forcbodiesonly.com/mopar-forum/threads/saw-this-on-moparts.91672/