Help ID'ing a Clicking noise?

I'm having the exact same problem. It's coming from the rear driver side area. I looked at the brakes all around the car (all drum) and everything is fine. When the car is jacked up, there's no clicking sound at all. Put the wheels on and there's still no clicking sound when I spin them while jacked up. But it's there when the car is on the ground and moving.

Clicking gets faster, the faster I go. Is tough to hear unless it's reflecting off of something. One strange thing is that sometimes when I'm off the throttle and I take a fairly sharp right hand turn, it almost sounds like I'm dragging an empty tin can behind the car. The sound is quite a bit different than the normal click. Once the car straightens out, that sound goes away.

The sound was happening while I had steelies on and it's still happening now that I changed to rallyes so I'm kind of at a loss.