My c7 z51 has this sound around rear wheel, anyone have same problem? Did u fix it? Help me plz! Thank you so much!

 

That sounds like bushings or a shock absorber to me. I have experienced this before, albeit, not on a Corvette. Get this on a drive up lift and replicate what you are doing while someone is underneath looking. As always take the necessary safety precautions. Any reputable shop would be able to safely do this for you. Let us know.

 

I checked last week, but they can find where is it, they said shock is good, maybe bushing, but not sure.

 

Sounds like our first bed when I got married!