Hello,
   Looking for advice on the disassembly and replacement of the rubber parts on what appears to be an original Vetus Type 6 Flexible coupling on the 35mm shaft of my1987  Marmu.  (No C drive)  If I will  need any specialty tools such as the collar wrench for the job please let me know.  

Thanks,

James Alton
SV Sueno
Maramu #220
Arbatax,  Sardinia