I just pretty much replaced everything in my rear suspension. Took out the SLS and put in 535is springs and Bilstein HDs (with new shock mounts). Also replaced pitman arms, submframe bushings, trailing arm bushings, and sway bar links.
I had some kind of rattling (slight clunking) noise coming from my rear left prior to the work, now it's still there! Where could this noise be coming from? It's driving me insane!

Any advice would be greatly appreciated.