Recently I noticed that my tractor was not engaging in gear after the clutch was released, I noticed that the gear oil was loaded with water. I immediatly changed the oil, flushed with some diesel and then refilled with new oil. The tractor seemed to be working much better and was getting better as I drove it. Suddenly the other day the clutch went to the floor but nothing happened, I noticed that the pin between the arm from the housing and the pedal connecting rod was gone, when I went to line things back up to put in a new pin the arm from the housing seemed stuck in a position that does not line up with the connecting rod. When trying to move it with the machine running there was a slight grinding noise, I also tried it with the machine off but still no luck. What could this issue be? Does anyone have a good idea on what the cost is to have the clutch rebuilt in one of these?