ON CERTAIN FRAMELESS, QUARTER-FRAME AND END DUMP TRAILERS, SMALL OUTER BUSHINGS (LEFT AND RIGHT) ON THE COUPLER PLATE HAVE CRACKED WHICH ALLOWS THE PIN THAT ATTACHES THE DRAFT ARMS TO THE COUPLER PLATE TO SLIP OUT.
ON CERTAIN FRAMELESS, QUARTER-FRAME AND END DUMP TRAILERS, SMALL OUTER BUSHINGS (LEFT AND RIGHT) ON THE COUPLER PLATE HAVE CRACKED WHICH ALLOWS THE PIN THAT ATTACHES THE DRAFT ARMS TO THE COUPLER PLATE TO SLIP OUT.