PTO SHAFTS WITH OVER-RUN (FREEWHEEL) COUPLING THESE UNITS ARE NOT A SAFETY CLUTCH! They prevent the tractor PTO and transmission being driven by implements on the over-run ie. inability to stop single clutch tractors such as the Ferguson Te20-MF35 single when a Rotary Cutter is attached. No protection under load hence normally used in conjunction with a separate clutch. SELECT SHAFT LESS END YOKE ... ... ADD MATCHING FREEWHEEL END YOKE Standard Shafts   Freewheel End Yoke ALTERNATIVE COMBINED FREEWHEEL - SAFETY CLUTCH SELECT COMPLETE STANDARD SHAFT ... ... ADD SEPARATE UNIT Standard Shafts   Combined - Freewheel Safety Clutches Parts shown are BARE-Co products and are not necessarily manufactured by the original equipment supplier. Original numbers are quoted for reference purposes only. Ongoing modifications and changes to specifications may be carried out without notification.