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- Tue Nov 06, 2018 11:38 am
- Forum: Class Rules Discussions
- Topic: Main sheet lower block upgrade
- Replies: 5
- Views: 15746
Re: Main sheet lower block upgrade
The Harken midrange swivel, 1574, fits the existing platform, sports a 280 offshore cam cleat and should be much stronger. It utilizes 1/4" fasteners and 5/16" pins which accept the 1550 midrange ratchet block. This is a readily available stock piece of hardware.