The last three hydraulic connection will adapt the 12 mm Yanmar tubing to the Ford's 15 mm tubing via flexible hoses. I did this by using short hoses with 12 mm hydraulic compression fittings on one end and standard 3/8" fitting on the other. However, This required cutting one end off of a 3/8" fitting, drilling it out to near 15 mm and brazing the fords tubing to the 3/8" fitting. The following photos I hope will illustrate it.