I know the Draw-Tite I have is beefier than the OEM hitch in the photo and a lot of others I have seen in the field. But most others are welded one piece and the Draw-Tite is bolted together. The two side rails wrap around the outside and bottom of the "frame" rails, and the crossbar with receiver tube, bolts up in between them. Has a small bracket built on that holds the trailer wiring socket. The whole thing wraps around the gas tank and serves to sort of protect it, and would probably make a good foundation for a belly pan. Interestingly, it and most others I have seen don't have rings through which to loop the safety chains. There is room to throw them over the top of the crossbar and around, and I guess that's supposed to be good enough, but if the left chain were to slide across the crossbar it would rip out the wiring. There's not a lot of room for extra goodies while keeping it all tucked in forward of the bumper though.
The crossbar should at least have recovery hooks welded on the bottom for those times it becomes necessary to upright flipped Toyotas and Broncos (or tow them if they are upright and merely stuck or broken).
Merry Christmas everybody.