Posted 3/5/2015 09:11 (#4432683 - in reply to #4432275) Subject: RE: 8420T John Deere Vibration
ne nebraska
I can't help you but am curious to hear the responses, as my 8100 does the exact same thing. I am going to start with the rubber coupler on the front of the engine that drives the fan, as that has pieces missing out of it.