Yamaha - Shaft, propeller - 6EE-G5611-00-00Yamaha Propeller Shaft Lower Unit Power Transfer 6EE G5611 00 00 Overview You can usually feel a bad prop shaft before you even see itvibration, noise, or just not pushing like it should. Ive pulled lower units apart where a slightly bent shaft caused way more problems than expected. This is the part that takes all that engine power and sends it straight to the prop. When its true and in good shape, everything runs smooth and balanced out on the