[dgcantrell]

They are all rebuildable. Getting a rebuild kit for them is the issue. Hydraulic clutch and master cylinders are the simplest of just any hydraulic devices. I've kept my old master and slave cylinders on my car and will rebuild them if I come across a rebuild kit for them. Haven't really been looking though.

I've had good success in rebuilding other though. I have several small brake cylinder hones that can really clean up a bore. The rebuilds I've done have lasted just as long as any of the others. The critical thing is to get all of the trash out of the lines before putting new fluid in them. Being that there isn't a lot of fluid in those systems, trash and contaminates will travel back and forth quite a ways during operation.