Wherever I have a bolt through a pipe I put a wooden dowel ,that fits tight, about 4 in to help with any metal fatigue due to tightness of bolt. Just a thought.....
By the way , I got your PM and will be talking to you about the end of Jan.
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Smilin Jack If You can't be a good example .
Then You will have to be a Horrible Warning
Chesapeake Bay Cruise Ship , Slightly Modded 35HDS