suv to trailer towing help

We tow with a 2013 Expedition EL and our trailer is 6204 lbs dry. Based on the trailer you posted it the weight should be much easier then what we pull, just gotta make sure you are okay on payload. In order for the Expedition you posted to have the 8700 lb towing capacity, it has the heavy duty towing package installed. On the '13 that includes a larger radiator, auxillary transmission cooler and an integrated brake controller. I don't see the controller on the one you posted but it may not have been included in the package on the '12s.