Well I'm runnin across the lake @ about 55mph, the motor throttles down and we come to a stop. Motor still running, put my foot on the gas and the motor revs but no movenemt. Ok this is an easy one except the dealer says the metal hub in these props never go out (and the motor lost power). Troll to the bank, pull the prop, the hub is fine. Set prop ans hub back on shaft and put in forward and prop won't turn. Put in nuetral prop spins. Put in reverse and prop won't turn. Start scratching my head. I tighten everything back up, troll from bank, fire up the motor, put in forward to run to the hole, motor revs up boat does not move. So, the motor cranks fine, goes in gear, comes out of gear, no noise. Give a little gas and the prop will not turn, I couldn't even turn the prop with the paddle while in gear. I'm guessing drive shaft. But why can't you turn the prop manually if drive shaft is broke. Remember the part about no noise. The prop shaft looks straight, just got prop worked and it still looks clean and I don't remember feeling anything in the water. It's going to the shop, I just like to know what's up. Maybe.