My 2021 durango sxt had the same exact thing darkhorse described. The clack that comes sometimes under light power. Hard to hear outside sometimes, easier to hear in the cab.
I have a question at the end of this...
My vehicle has just over 114K miles and this is what I found after pulling off the right cover. I could hear this underlying knock/tap sound which was easier to hear from inside the vehicle at some points. Also while driving, I would get this clacking...