I pulled my alpha one outdrive off my chaparral with the 454 magnum engine. It was locked up, but the engine turned fine after I pulled it. I got the u joint assembly (coming from the engine) to turn by hand, but it is very rough, like some grit in the gears. When I turn the u joint assembly the drive shaft that goes down to the lower unit does not turn. If i turn the shift lever to one side or the other, the prop will lock in gear, but extremely hard to turn. It seems like it would be a bad gear assembly in the upper unit, but I am wondering if I might have some problems in the lower unit as well. Also, the shifter "shaft" seems to move up and down about 1/4 to 1/2 inch. Is that amount of play normal? I have never worked on an outdrive before so I am trying to minimize what I take apart so I have less chance of screwing anything up. Any help would be really appreciated!!