Here is my hydraulic steering set up. I bought a Jastram balanced 7" throw commercial cylinder on Ebay. After lots of research, I settled on the Seastar Pro helm pump. I customized all of my rigging to achieve a 2 turn system with the 2.4 pump. Very happy with the set-up and the pump quality matched to the high-end cylinder. I would only recommend the PRO pump as it produces higher pressure and requires the special high pressure hoses. My rudder is an overkill 1 1/4" shaft.
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HAP
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HAP