Hmmm, I wonder about this also. Mine is clicking when I back up slowly with the wheels cut to the left. I hear a single "pop" and that's it. And it does not do it every time. I'm not sure what it is. I do not think it is my CVs and it drives fine in all other respects. The sound seems to be coming from the right side, just BEHIND the front right wheel....

Does this sound like a similar symptom?

Bart