Interesting that this thread would resurface today since it is the 2nd anniversary of intalling a manual in my wagon. And no, after two years and about 40thousandsomething miles, the vibration issue has not been resolved either. But interestingly enough, the vibration is only marginally worse than it was in the beginning.

FWIW, revving the engine (both in neutral and with the clutch disengaged) to the rpm where the vibrations occur does NOT duplicate the vibration. It is definitely not the flywheel causing this vibration.

I'm confident my problem comes from a badly worn transmission which hopefully will be resolved in the not-to-distant-future when I install the five-speed I have in inventory.

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Never a dull moment at Berry Hill Farm.