I want to tow a 8.5 x 20' V-nose cargo trailer with my Grand Cherokee, The Jeep came with a factory class IV hitch and the V8 is rated to tow 6500 lbs and a max tongue weight of 720 lbs. The trailer has tandem 3500 axles (7000 GVWR) with a dry weight of 2900 lbs and a hitch weight of 300. Total combined GCWR is 11450 lbs. The question I have is am I going to require a weight distribution hitch to prevent swaying problems? I am putting on an electric brake controller as well. Any quality advise would be appreciated.