I've been hearing these horrible clunks when going over bumps, and I've been trying to figure out what it was. I replaced the sway bar bushings and end links a few thousand miles ago, and that stopped the noise. Then it came back!
Since it sounded like the same noise that was eliminated with replacing the sway bar bushings, I tried to buy a new pair to see if that was the problem. The parts store guy said none were even available in the state, and they he always just wraps the sway bar with duct tape and reinstalls the bushing.
So, I did that last night and the noise is gone! I'm shocked that sway bar bushings would wear out in about 5k miles!
I did notice some pitting on the bar where the bushing sits, so maybe the twisting is grinding down the bushings?