Well that's better than a gearbox replacement, would the DMF cause a noise that sounds like a growl? the vibration seems right, at neutral throttle while driving there is no noise at all, and there's nothing obvious when in neutral gear, the growl is when either accelerating (which has now been joined by vibration that seems to coincide with cylinder firing) and decelerating where the growl takes on a type of pulse, it's all linked to engine revs rather than road speed. My Fraud dealer is going to take a look tomorrow, but I'm trying to narrow it down as far as I can now. Thanks for all help so far!