I bought a new dampener.. the old one was on the marks timing wise, but had a little wobble to it... no change with the new dampener. New everything external from the crankshaft back... flex/tc/trans, etc.. Does it in neutral and park while stopped from about 2,000 up.. ignition and related parts checked out okay, plugs fine, oil pressure great... just a vibration that I can't find the cause of..