John Deere 9620RX Tractor December 9, 2015 by farmlifetoday bigtractorpowerWed, December 9, 2015 12:29amURL:Embed:All new 4 track 620 hp John Deere 9620RX working on fall tillage with a 9 shank John Deere 2100 series ripper. http://www.bigtractorpower.com