Rear End Clunking

[RJP44]

truck is a 2015 2500hd crew cab 4x4.  Ive started to notice clunking in my rear end if I go over bumps or uneven roads.  I initially thought it was my hitch with a bad fit, so removed that and anything possible in the bed and yet the noise still exists.  The truck drives normal no vibrations at all and everything i can see under the truck seems ok at a quick glance.  Not sure where to go from here or what to check next?  Anyone experience these issues?  

[sillywillie07]

there is a tsb on the leaf springs.  Clean between the leaf springs and apply grease.  I have to do my truck once a year to stop it.

[GTBensley]

Mine also does this. I also clean and lubricate the leaf packs and that takes care of the issue. 

[4wdriver]

If not that maybe a shock. 

[Jimmy Anna]

This is also done by mine. In addition to that, I make sure the leaf packs are spotless and lubricated, and that takes care of the problem. Wordle game

[joseper]

i have a brand new 2022 chevrolet trail boss duramax with only 18,000 miles and same problem. i was told there is no fix at the moment for this noise