Clunking noise when driving over a pebble., (YES I used the search engine) Options

[GriffGirl]

I didn't wanna threadjack or anything since my clunking noise seems to be totally different than the "clunking while braking" thread... I know my rear struts are blown (there's evidence of leaking) and I'm getting ready to fix that very soon finally. But while I'm up in there I want to fix whatever it is that causes the awful clunking in the rear of my car. It happens mostly when I'm driving on the streets as opposed to highway. At higher speeds (over 45 or 50) it doesn't make the noise. I searched around and have found conflicting reasons that point to either the endlinks or the swaybar bushings (or strut mounts).

Anyone have any input on this, and how to I tell which one it is? I don't want to just arbitrarily replace stuff that doesn't need replacing. Yeah, I'm all for upgrading everything, but a girl's gotta pay the rent too.

[LewFX]

end links sound like rattling or popcorn popping in the rear
strut mounts clunk when turning
wheel bearings can clunk if seized and can make your rotors warp and brakes wear if uneven.
bushings will help with small clunks while driving over anything