I went to my dealer today and my service advisor noted that there was a TSB released by Lexus today for the clunking driveshaft. I asked him what it entailed, and he mentioned many parts like rear connecting links and so forth... not simply "lube the driveshaft".
We'll see, as more info becomes available. Maybe Lexus finally stepped up to the plate to provide a real solution.
Edited by denslexusgx470, 19 December 2007 - 08:58 PM.