I have a 91 camaro and have the most horror noise caoming from the left rear area all the bushing and rear swabar were change. The noise sound like sometime loose like the speaker i check everything good i lube everything around that area with wd40 anyone have any ideas.

thanks

 

Hard to make a diagnosis, here's what I suggest, crawl under the back of a car, and have a couple freinds push up and down, left and right on the rear of the car, try to pinpoint the noise.

BTW, don't use WD40, it cleans too well, use chassis lubrication grease, aka axle grease.