2015 First Hay Cutting with a John Deere 7780 ProDrive April 29, 2015 by farmlifetoday bigtractorpowerWed, April 29, 2015 12:47amURL:Embed:2015 First Hay Cutting with a John Deere 7780 ProDrive Self Propelled Forage Harvester. Follow us @ rel=”nofollow”>https://www.facebook.com/bigtractorpower