Hi Gents, The Brake M/C on my 78 400A is US and need to replace, The one on mine looks different to the supposed replacement as mine has the hexagonal screw in part in the end, has anyone used the new one on a pre injection 400 with success? Mine but for LHD car http://www.mediafire.com/file/d7wlz38fhzjpli0/ferrari-400i.jpg/file Proposed Replacement http://www.mediafire.com/file/i5d8943ruj58yvn/ferrari_2.jpg/file Any Ideas? Regards DJ