Anti torque bow thruster modification


I'm just migrating this discussion from the Amel FB page as you guys seem to be more technically inclined. With reference to a question I had about too much 'play' in my newly acquired SM 97, I came across some documentation about an anti-torque mechanism that apparently was standard fit after 2003 but can be retro fitted to pre 2003 bow thrusters. Anyone fitted one and if so, does it work?

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