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M39 Hull Thickness? ... Sizing thru-hull fittings
Hi all,I'm getting ready to replace thru-hulls (which are all original) on my Mariner 39 with TruDesign fittings. I've heard the hull is 2"+, which would be too thick for the skin fittings I bought. Snooping around the forums, it sounds like it's under the engine where it's that thick, but thinner elsewhere?Can anyone confirm hull thickness?While I'm at it, any advice on replacing the thru-hulls specific to the M39 is welcome. Other than I need to grind the original ones out of the fiberglass..…
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