Drained fluid looked good and shift nicely. Judging by the V Shape.

Surrounding the propeller area, this is clearly a 1980 or above. However, it was installed on a 1973. It just goes to show that these lower units are very mixed. Matchable, and the bolt pattern is Is common. 1972 1985 from 85 HP to 150H.P Look closely at the photos.If yours looks like this it will fit.