I dont know what to tell you w/o looking at the parts. Seems, if it was functioning, you could clean it up, grease that shaft and put it back together and be alright. You should be able to adjust the clutch to a reasonable torque point to protect the tractor. Our Kub L's are pretty tuf. Weve stalled them many times hitting stuf with the 127. They show no ill effects.
,,,It was pmsmechanic that was right about the balls. I just recognized it when we figured out the model 205. He has apparently worked on one like it. I havnt. The GB and clutch are much beefier on the 127 Gyramor.
larry
Ok I appreciate it.