Yep, put more of the weight on the rear of the trailer. Then you can go buy a new tow vehicle when you wreck this one. For one thing the Explorer is not big enough to handle that much weight. All the years driving trucks, I can not count the number of wrecks I have seen from IMPROPER towing. You might get away with moving the car back a little bit on the trailer, but watch out for SWAY. I know, everybody(including me) has towed more than they should. Some get away with it for a long time, some don't. Believe me, I am not trying to be a smart ass know it all. I have seen way too many results of towing with too small a vehicle. At least, if you insist on using the Explorer to tow this big a load, get a load leveling hitch.