Thanks DJ, There are additional 1/2" plate sandwiching both sides of the 2" tube and fit just inside the big hitch bolt pattern that also tie into the rear two crossmembers. You can see that even still, I had to adjust the tongue height of my dump trailer to its highest setting to get the trailer to sit level.
Are52:
Its just not hooked up in the picture. The reason you see a coil of wire hanging there is its an adapter. I originally swapped out the Mil trailer connection for a civi 7-pin round receptacle for the big trailers that I tow. Then I made an adaptor from the round pin to a flat 7-pin. That way, I can tow almost anything else. I have had experience with those 5-pin round adaptors from rental places and they generally foul everything to Shiite. I installed a Tekonsha Digitrac II brake controller (inertia, pendulum type.) My "friend" (the type of person who always gets the same thing cheaper and who always tries to one-up you by claiming what he got is slightly better) says my pendulum controller is no good because it won't work on steep grades. I promptly told him to go F himself. I have had no problems with towing heavy things on any grade and it is easy to adjust to different towed loads. By the way, all lighting on the truck (except the headlights) and trailer power source is 12V.