[YankeePSC34]

Thanks Neal. That gives me more ease to believe that the gear box on Yankee has a reduction ratio of 2.14 too. I also checked my original Pacific Seacraft manual. In the propulsion chapter it does not list neither the Yanmar 3JH2E engine, nor the Austral 17 x 10 2-blade prop, nor the 1" shaft diameter, nor the 1"x1.375"x4" cutless bearing, nor the stuffing box, but a reduction ratio of 2.14 for the gearbox. I do believe now that it might be correct and not just a copy/paste information.