rear suspension noise?

I have a 01' with 30k the right rear suspension has some clunking noise when going over bumps. highway driving going over bumps feels like the rear end wanted to pull toward the right side.
I can hear a clunk easily when I push down on the right rear of the car/and inside while driving sounds annoying as hell. I took it to dealership and they replaced the sway bar linkage on both sides. Which stoped the pulling to one side going over bumps on highway, but still have the noise and I'm going to take it back. I dunno if its a bad shock/bushing or? The sound is at the start of the shock travel so I doubt bad shock? anyone else have this?