Hey all, I was wondering if a 9.9 lower unit from a two stroke Johnson would fit on the motor of a 4-stroke Johnson. I have a 2005 9.9 four stroke Johnson that has a bad lower unit prop shaft assembly. The prop shaft itself is bent the prop is broken and a few other parts are bad. I found a lower unit for a 2005 9.9 2 stroke Johnson and I was wondering if it would be a direct bolt up or if it doesn't directly bolt up if the prop shaft assembly would swap over. Thanks for any help