The number 20320PA001 is not coming up for me. This one keeps coming up instead 20320PA011, so perhaps the old number has been superceded?
Anyway, my suspension is about a year old - new struts, mounts, rubbers, BJs, TREs, etc. I too have been noticing a slight noise as described previously, going over uneven surfaces. Going over large bumps, I don't seem to notice the noise. I too checked everything as the OP so I'm unsure of the source of this slight clunking as well.
I'll keep a close eye on this thread
