I think it's a 3" drop 2" rise and it's flipped up, so nothing unusual, standard hitch. But I will test out some of my other combos (only have 5 or six) to see if they work.
Received Area51 Lariat Friday and in general love the truck, but I ran into a problem leaving a receiver hitch and ball installed, the parking assist goes off constantly, I always leave trailer hitch installed in case I need it and to provide a stop when unloading the truck. not a show stopper...