Originally Posted by bmwktmbill
That lockwasher idea is interesting, wonder if it is the same size as the lock washer(bendable) on the clutch?
Sorry Bill doesn't look like it.
A quick check at Munn's shows it was a 2003.5 introduction and the part number for the washer only cross-references to various other models for the same tranmission shaft, not the clutch. For an earlier model, you would need a new shaft to use the new washer and nut.
I know when I first got my 2006, I didn't bend the washer and the nut loosened with 1000 Km (it was tightened to the torque specs with loctite). Did it back up, and bent the washer and no more problems, EVER! And I have even re-used the washer several times.