Bed rattle over bumps

[Pyleketerson]

Hi all. Just picked up a 2020 BTS and loving it. Quick question, though: whenever I hit a bump in the road my bed seems to “jump” and make a slight banging noise. Could there be a bolt loose back there? Anyone else had this happen? Just starting to try and figure this out. Searched and couldn’t find anything. I traded in my 2019 Laramie recently and never experienced this. Thanks in advance.

 

[Scram1500]

I've been looking for a solution to this as well, found a lot of noise from the tailgate but that only solved some of the noise. These trucks also have a floating rear axle, mine seems to have more play than my last Ram that could also be a source