think about this . prop turns clockwise in fwd when under power. If you were to turn the input shaft clockwise you will see the prop turn clockwise for fwd gear.
Have been asked to track down the correct application for this gear.standard searches and old catalogs have shown nothing for this part number. 43-18577 , 43-18577T
Than ks for any assistance
I will replace the gimbal bearing and all the bellows with the help of my son.
If you can do that ,you can reseal the upper this a alpha1 or the alpha gen II