I have a 60hp evinrude that was given to me. when I got it the prop was just sitting on the shaft unattached with out any parts. my question is what do I need, To attach the prop.model no 60452S serial no E01398 also what year is the motor I thought it was a 1960 But I was told the other day that evinrude made the 60hp after 1964 ? Thanks RexRacer 