Please help! I have a 2004 340 Sundancer with the 8.1L Mercs. Last summer I snapped my starboard shaft right at the taper. This was the result of metal fatigue. Apparently this is a common problem with boats equipped with the 8.1L engines because of the higher torque. Also Sea Ray uses Aquanet 19 shafts as opposed to the stronger Aquanet 22. This set me back $4500. My question is what to do with my port shaft. Here are my choices. 1. Do nothing and take my chances and possibly loose another $1800 prop. 2. Have the shaft removed and tested with dye. Cost about $800. Only sees stress cracks on surface and does not guarantee it's integrity. 3. Have shaft replaced cost $2000. I appreciate any advice you might have.