NHTSA recall 85V167000
Trailer hitches › Fifth wheel assembly
Grumman Kurbmaster
Reported Dec 20, 1985218 vehicles affectedGRUMMAN ALLIED IND., INC.Built Mar 1, 1983 – Aug 1, 1983
The defect
The reinforcing plates were omitted from the trailer pin box assembly, which IS used to hold the fifth wheel assembly to the trailer. consequence of defect: a fatique failure off the pin box allow the fifth wheel assembly to separate from the trailer. therefore, the trailer will fall off the towing truck and roll uncontrolled on the roadway. This may cause an accident.
The remedy
Replace the pin box assembly if reinforcement plates are missing.