Has anyone else noticed that Impeller 18-3056 is shared by Chrysler/Force,Honda and Merc.?And 3057 is shared by Force and Merc. Maybe a shared Leg as well?
Mercury made some Honda gearcases. The driveshaft splines are different between the brands. Most of the later Forces are Force powerheads on Mercury legs. Again, driveshaft splines may be the main/only difference.