Went to the lake first time this spring, boat ran fine. I drained the lower unit oil last fall and replaced it this spring. I cruised around the lake, stopping to fish several times, the boat shifted with the same clunck that it always has but this time it wouldn't go forward, it would go into reverse though. After I got the boat home I put the shifter in forward and went to the prop, it turned freely, then went back and put it in reverse, it did not turn and you could tell that it was in gear, in neutral it turned freely as it should. Does anyone know what might have happened?
