Gary, The original sheaves are wire/rope compatible since Monties back then ( I have now owned two of them) came with wire-rope halyards. When changing them I went to 1/4 inch halyards which rode easily over the sheaves even with the wire groove in them. Unless you need new sheaves, then just buy regular sheaves the same diameter as the stock Monty ones. Using dynema or regular dacron lines will work just fine. Fair winds, Tom On Wed, Jun 17, 2020 at 2:44 PM Gary Froeschner <msogggf@gmail.com> wrote:
Does anyone know where to find replacement sheaves for the halyards in the masthead on a M17? I can’t seem to find any the right size on line. My boat is a 1976 M17 hull # 950. My mast is 21’-7” long.
Gary Froeschner Columbia, MO msogggf@gmail.com
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