martyd Posted August 11, 2011 Report Share Posted August 11, 2011 Hi Guys just bought a as new 05 4rt Want to Upgrde the Master cylinder Is there a difference between the 315 cylinder and the Large bore 4rt one the sandifords sell?? P.S any particluar age of 315? Thanks Marty Quote Link to comment Share on other sites More sharing options...
thesolidman1 Posted August 14, 2011 Report Share Posted August 14, 2011 Hi, I just bought one with the large reservoir. I thought it was the one with the larger bore, but it wasn't. It made my clutch feel strange. Didn't care for it at all, went back to stock. I took the seals, etc out of the new one and put it in my original to freshen it up, so this also confirmed the bore was the same. I guess you have to get one from a 315 to get the bigger bore? A bit puzzled myself. Let us know how it works out for you. Quote Link to comment Share on other sites More sharing options...
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