I would like to see some pics...
Thinking out loud, there must have been something that was installed or holes drilled at breaking point ect.
Sounds like a major failure, not sure if a truck frame shop could weld a new A frame to the front of his trailer?
2011 Coachman Freedom Express 295RLDS- Sold
2015 F-250 FX4 SUPER DUTY 6.2L Gas 4WD SuperCab XL 3.73 rear / 158" WB / 8' bed. Factory anti-sway and brake controller