It's not a bad job if you have the right tools and the corrosion isn't too bad. You'll need a specialty tool for removing the tilt pins that attach the bell housing to the gimbal ring, and you'll need a bellows expander for the exhaust bellows. Both can be found on ebay for a reasonable price. You don't need the bellows expander if you use the exhaust tube abl1111 mentioned.
The key to a successful job is to make sure you remove all the corrosion from the bellows mounting surfaces and use the bellows adhesive Mercruiser recommends.
If it's time to replace the bellows, you probably want to replace the gimbal bearing and check engine alignment as well. That means more specialty tools. You'll save enough $$ on the first use to pay for them.
Dave
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Blue Heron Boat Works
Reinventing the wheel, one spoke at a time.
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