S/n 4202006908 SX-M 1.66 Yr 2000 VP Outdrive.
Removed the drive for the winter found rust on the drive shaft in small area. See Photo :
1) No rust on universal joints or sign of water damage
2) No water in bellows, bellow appeared seats and sealed.
3) No sign of water in the grease in gimbal bearing
4) Splines were well greased at beginning of season and drive came off no issues.
It appears the rust is just in the area between a few inches after the gimbal bearing and where the splines go into the engine.
Where should I start looking for this issue?