I have a dual helm, Wagner 700 hydraulic steering system on my Ta Chiao 35 with twins. The boat is new to me and was out of the water for 8 years. After reinstalling the fly bridge (removed for transport) i had a hard time bleeding the system. After checking the steering ram (piston) i found it was leaking. I am looking for info on rebuilding the steering ram. I understand that Wagner is no longer in business however, I am unsure if parts are available? Could a local hydraulic shop reseal this or are the orings universal?