Hi Folks. I've got a 02 GT with 84k. I recently got a clunk in the right rear. After doing research, I've heard everything from bad differential to upper control arms. Turned out to be the PARKING BRAKE CABLE thumping around in the eyelet that guides it. It was a lucky find.
That's all... just a heads up for the next guy searching. I'm sure they all do the same thing.