Thank you both for your replies. Sadly hydraulic brakes are illegal on this type of trailer, confirmed by the National Trailer and Towing Association who said in response to me request for confirmation: Hi Martin, I’m afraid that you are indeed correct – hydraulic brakes on this category of trailer ...

image.jpeg Hi I have recently acquired a 1981 Mastercraft 19ft V8 5.7ltr inboard ski boat. The boat was built in Canada although to USA spec which included the custom built 2 wheel trailer. The trailer has surge actuator hydraulic drum brakes fitted ( although long since ceased working as bone dry ...