Alloway Shredders use a variety of clutches at the implement connecting end. Some are specific and must be replaced identically. Some are more generic and can be replaced by several optional devices. The key is whether or not the input shaft has a groove such as the tractor PTO output does.
If there is no groove, then the clutch must be replaced by an identical unit.
In our opinion, overrunning protection is more necessary than torque protection.