You are right on the edge. Smaller/lighter trailer or larger tow vehicle would be recommended. Yes your body weight comes off the 5000 tow capacity as well as other things like , water, propane, food, clothes. Please research by just Googleing tow capacity. Let's say your camper weighs 4200. 5000-4200=800 your combined weight is 490 you only have 310 Lbs left for everything. REMEMBER Capacity not beginning weight. There will be hills to go up and you will really overwork your car. Also your Explorer is a unibody not a framed vehicle like a truck. I would not recommend towing 5000 lbs with a unibody car. I tow a 6100 lb Travel Trailer with an Expedition with a HD tow package. Capacity 9600 and 11200 with a weight distribution hitch. I am telling you this is almost more than the Expedition can handle. Rethink this. I have seen vehicles hooked to campers that should never have happened I see it all the time. Don't listen to the sales people research it yourself.
2011 Jay Flite 26 BH
2013 Ford Expedition HD Tow Pkg:hello: