My old boat had a 1989 1.6L seadrive. My newer boat has a 98 Johnson 115. Since I had just bought 2 new props for my seadrive I took the old prop off the new boat and put it on the old boat before I sold it figuring I would have 2 brand new props for the Johnson. The aluminum prop fits fine, the hub of the stainless prop must be about 1/4 inch deeper because when I put it on only about 1/2 of the thrust washer is in the shaft splines, the other half is on bare shaft. I don't think this will hurt anything but thought I would ask???