Ok I should have included these pictures and yes the Saginaw tail shaft was replaced by something only Patricks had at the time. He had this special, piece made just for him. it even has raided ID cast into the unit it simply said Patrick. There cant be more than a few hundred in existence. It replace the tail shaft and bolted right up the torque tube. It was designed only to mate up to the Saginaw 4 speed tranny.