Henry, you nailed it. Last night ,using a vice and other handyman tools, I pushed the hub with the rubber lining/clutch out of both props, swaped them and pressed them back together. Now the new prop with the old hub works great. You are correct, Sears put their name on those motors. This solution, I feel, is good for the dingy and I would not trust it as a main source of power. I launch the boat next week. I'll let you know if it holds up! I'm bringing the oars ;-)