Hi guys,

I'm looking of a bit of advice. My 2005 XT660X has developed a clunking noise at the back end.
The sound is almost as if the chain is catching on bent sprocket teeth.
That's not the problem though since on the chain and sprockets are in good condition. The sound is also not consistent, so it isn't repetitive like a metronome for instance. But it does happen frequently (between 5 and 10 seconds).
The knocking seems to resonate into the right footpeg (I feel it a lot in my right foot).
I would seem to think the sound is coming from the right side of the rear hub but I don't see where a noise like that could be coming from since the chain and moving parts are on the left.
I get the noise even when the motor is off and I freewheel (in neutral or in gear with clutch in).
Seems to be prevalent when leaning right around a corner.

I disassembled the back end and found the cush dampers in the hub to be very badly worn (the rubber piece that joins them together is completely broken).
I'd be happy to replace them if I knew for certain that was what was causing the noise but I have my doubts (because I still get the noise when freewheeling and the chain is not pulling on the rear sprocket to bring it out of alignment).

Anyone experienced this and can relate or advise?
Any other troubleshooting tests I could run?
Any thoughts? Many thoughts?