Heavy Vibration

[i4110peter]

Took the boat down to the lake and got it off the trailer, started the engine, put it in gear and just about shook the back off. The only thing different is that I am putting pressure on the outdrive when in the water. the other thing I noticed is that when I use to spin the prop in neutral, I would hear a tick, tick, tick, and there would be slight resistance. Now the prop spins freely and no tick. I think something broke in the lower end. Opinions appreciated.