Just a question, but what's the hitch for?
If it's for a bike rack or BBQ, you could get one to clamp around the bumper.
If it's for double towing, I would guess that it needs to be tied into the actual frame of the trailer. You would likely have to take the membrane off the underbelly and have it welded to the frame for proper frame support.
Please provide more detailed information for a more detailed response.
2017 Forest River Surveyor 247BHDS...
...Tugged by a 2016 F250 XLT FX4 SuperCrew, Shortbed 6.2L, 4wd, 3.73...
...Joined with a Husky Centerline TS 800-1200lbs WDH