J2807 is also why the "maximum" trailer for mid-size trucks is 7,700lbs (OK, the '19 Ranger is currently 200lbs shy, but that may very well get a small boost in coming months given the Gladiator limit of 7,650).
The J2807 spec has break points of C class (5k lbs/40ft^2 frontal area), D class...
I'm limiting myself to options that might be possible:
SCrew with 6' bed - deal breaker, I have an Adventurer 76r camper in my existing Ranger and it goes to end of tailgate; a 5' box isn't going to cut it, if I'm not getting SCrew, why upgrade.
"PowerScope" Tow Mirrors - If we can tow >7,500...
SAE spec J2807 section 4.5.1 requires a stop from 20 mph within 35'. Ford has determined that the max trailer that can be braked in that distance is 1,650 lbs.
This new spec is dramatically reducing everyone's unbraked trailer maximum.