trailing arm bushings? no, because I knew something was seriously wrong with the lateral link

I guess those might be next

 

Good luck, I know those sounds could drive you nuts!

 

... seems like it make have been also Brake Squeal. Brake anti-Noise goop has been applied, and it's good *fingers-crossed*.

[edit] It's great now. No suspension or brake noises from the rear.

[edit part deux] It wasn't great, brake goop boiled off. It was a intermittantly seizing rear caliper. Much money later...