Clunk on the driver rear side need help diagnosing it

[ivin74]

I have been hearing a clunk in the driver rear side of my Yukon. Can so one help me find were is coming from. I looked under the truck and cant find anything loose. Could it be the rear air ride shock, i hate to buy a 300 dollar part and not fix the problem.

 

[Kraig]

When does it clunk? Have you tried jacking it up by the frame and jostling stuff around? Could be a bushing in any of the suspension Points.