Home › Forum › Ask A Member › New to me 1977 Johnson 25hp Questions › Re: New to me 1977 Johnson 25hp Questions
October 7, 2018 at 6:49 pm
#84121
The 1977 25hp was sort of a lower priced mixture between the "old" 25 and "new" 35hp, and yes it still had the 307949 Stainless steel Drive Pin. 1978 25hp still had the old style lower unit, but with a splined prop shaft. I’ll stick my neck out and say you could probably change the prop shaft (and prop) to a splined version, but I’ve never tried it.