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| 680 also comes standard with pro drive and command touch which is far superior to the 3speed push button and high torque variable drive but it is an option on the 670 and 680 has bigger hydro pump larger feeder lift cylinders bigger hopper 680 has driect drive eng cooling fan where 670 has variable drive eng cooling fan like the 8r tractors the cabs after 2012 are much quieter due to better insulation I would look for a 2016 or 2017 year model machine I think they are the better ones | |
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