I am trying to sort out which prop nuts were used on the Johnson A and A25’s. If I am reading my parts list correctly it seems they used a two piece nut, flat and acorn type with no cotter pin on the A motors and the same parts on the A25 motors but added a cotter pin. It seems that the one piece nut and cotter pin was not used until the A35’s came out. My question is: Am I correct? ❓