Two John Deere 9420R 4wds V-Plowing November 15, 2015 by farmlifetoday bigtractorpowerSun, November 15, 2015 1:30amURL:Embed:Two John Deere 9420R 4wds ripping soybean stubble with 7 shank John Deere 915 V-Rippers. http://www.bigtractorpower.com