the clunk on my car would go away for a day or so whenever I lifted it off the ground. Jack stands, my lift, etc. I got tired of throwing parts at it like someone else said above and just deal with it. The only time I do hear it is when going down my driveway and private road, but they're bumpy and very uneven, I can live with it.
I replaced my front sway bar end links on Monday and it got rid of a lot of the noises I was hearing. I could of sworn a lot of the sounds were coming from the rear, but alas, this has fixed it. Sounds can travel and seem like they're coming from somewhere else. Just food for thought.
I hope the UCA fixed it for you!