I own a 2016 Ford Explorer 3.4L V6. I have the Class III tow package installed. Ford's website says that I can tow a maximum of 5,000lbs with a weight distribution hitch and 2,000lbs without one. The sticker on my hitch says "Class III Hitch, Max Gross Trlr Wt Carrying 5,000lb, Max Tongue Wt Carrying 500lb". Do I need a weight distribution hitch if I am looking to tow something over 2,000lbs? The PUP dealer said he's never installed a WDH for a pop-up before (it's frame cannot handle it). Any input is appreciated.