I have a silverado 2011 1500 lt. So I decided to check my lug nut torque and while doing so noticed a couple clunks. One in the rear when the wheels rolled forward to take the slack out there was a clunk at the wheel a couple seconds after the wheel came back to rest. There is also a clunk from the middle while torqueing the rear wheels seems to be coming from the transfer case. I got underneath and u joints look ok they look like there moving with the driveshaft. Possibly related but I have had clunk when coming to a stock some times while downshifting not all the time thow.

 

https://chevroletforum.com/forum/tah...g-stop-111801/