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Is there an upgrade kit with instruction? Or do I buy a standard later model gudgeon from Hobie and just wing it?


You're on your own. Just buy the gudgeons and wing it.

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The boat has two sets of rudder/tiller castings. One set appears to be the adjustable type with set screw in the tiller arm. I assume both types mount the same with the newer gudgeons??


The lower castings are virtually identical. You might have to grind some material away on the lowest portion of the casting to clear the gudgeon screw. (You'll know it immediately upon installation what I'm taking about.)