Clunk noise, underneath car while braking Options

[Coligion]

I've been having this problem for as long as I've owned the car. When I put the car in reverse, back up, and then go to first gear and the next instance I brake I hear a loud, clunk noise from underneath (pretty sure it's the rear). After the initial clunk has been made, the noise is gone no matter when I brake--as long as I stay in gears 1 through 5. If I go back into reverse and repeat what I said above, I can repeat the noise everytime; however, it appears to be louder on cold-start. I have no idea how to diagnose the problem. My only thought was possibly sway-bar bushings? The front bar/bushings have been replaced with a Suspension Technique bar, but the rear remains stock. I jacked up the car this evening to have a look at the rear bushing and they don't appear to have any damage on them. Any help is appreciated.

This post has been edited by Coligion: Sep 9, 2008 - 9:38 PM

[azian_advanced]

it's difficult to tell if the sway bar bushing is no good by just looking at it.. it can appear normal and still be bad. i had a similar problem before. when i back up from my long bumpy driveway, i heard the rear clunking. after i replaced my bushings, the clunking was gone.
it's easier to notice these 'clunks' going in reverse because of the way the sway bar is angled and mounted to the frame rails... and harder to notice when you're moving forward. so i'd say it would be your sway bar bushings... but again i could be wrong here.