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I complained about that vibration since I got my B3030. My dealer took a year to make a move and sooner this Spring he replaced a... I don't know, it's a "Z-bracket" around the steering post (something like that, I wasn't there to see what he was doing). And you know what? It changed nothing at all. So last year when I got the tractor and found out about that vibration, it was unacceptable (2hrs of MMM and you don't feel your hands anymore), I mounted a "spin wheel" on the steering wheel with a rubber cushion underneath it so now I barely feel the vibration by touching only the spin wheel. This is the only thing I'm disappointed about that tractor, the rest is great. Here's a pic of the "spin wheel"... I think it's called that way.