575 hp Challenger MT875C with 11 Shank V-Ripper December 28, 2014 by farmlifetoday bigtractorpowerSun, December 28, 2014 1:49amURL:Embed:Challenger MT875C with 11 shank John Deere 915 V-Ripper. Follow us on Facebook at https://www.facebook.com/bigtractorpower