In order to balance something you have to either add weight or take away material. If you were to add material to the prop shaft you would never get it thru the bearings. If you were to grind away...
Prop shafts are not balanced like a drive shaft, but they are checked for straightness. If they are not straight they can be straightened. But not if they are bent too much. In that case you would...
I would say you have to look into the uploaded picture size and make them a standard size. Some threads are centered on my screen. some of the threads take over the computer and I have to scrole to...