Does anyone have any experience with the 12 speed transmission in the 6120, 6220, 6320, and 6420 tractors? This would be just the syncronized transmission, not the 12 speed with power reverser. I didnt even realize these were an option, thought the different power quads were all that were offered on these, but looking at one and that is the transmission the owner says it has, whichc is probably why it is so much cheaper than the rest out there with fewer hours. Are these decent, and I am assuming dry clutch so probably clutch change in the near future? Thanks for any information.