Hey,

I picked up a used motor and LU over the winter sionce I blew mine out. Opened up the LU, everthing looked fine, changed all the seals and put it back together. when i put it in gear and turn it by hand, i hear a sort of grinding noise, kind of like when a wheel bearing is finished,
Any idea what it could be? I'll link a video. If itsa in neutral, no sound. When I put it either in foward or reverse I get the grinding noise. Maybe it's a regular noise? I dont remember my last lower doing that.
All the gears looked fine when I took it apart, havent put it back on the boat yet.

Thanks
https://www.youtube.com/shorts/mR6qAce-McM