Just curious, does this boat have a separate propeller
shaft strut, with a cutlass bearing in it?
On boats with cutlass bearings in separate struts, do most also have another bearing in the stern tube, as it sounds like this is what you are talking about here?
My boat has a strut / cutlass bearing, and the stern tube has no bearing - just the stuffing box, to keep the water
out. The engine
alignment keeps the shaft centered in the stern tube.