Well that's what I was thinking. I was freely spinning until I bolted it and tighten it up. So it making me think that the PTO shaft is not fully seated in which is not allowing the clutch assembly and its fingers to come in contact with the throw out bearings. I did make sure it was. Is there something on the other end of the shaft between the clutch housing and trans that preventing it? The tractor meshed together without and real bind.