did you not read my second post? Its my clutch masyer cylender, no shit about the new clutch, im not stuipd enuff to buy a used clutch.... I got an organic Centerforce kit for 500 online, its on its way, I just wanted to replace my clutch master cylender befor I do my clutch, I was wondering if I should buy an aftermarket (new), Stock (new) or Junkyard (used), clutch master cylender? I was lookin around and for a larger displacement I think it was 5/8 its around 70.00, and for a stock new its 30 and junk yard its 8.00... I havent seen a rebuild kit, so I asume there is not one for this job. So Should I go with the larger aftermarket one or stock? What is the difference between the stock one and 5/8?