A pulley system is mounted on the tractor for {TAIL ~ connection} with {HEAD ~ the flatbed unit} and fifth wheel coupler 
A pulley system is mounted on the tractor for { TAIL ~ connection } with { HEAD ~ the flatbed unit } and fifth wheel coupler
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH