Took the Z to work today to show a buddy my new console refurb. Well I went to lunch, it was such a nice day, I ate outside and just admired my Z from my table. After leaving I starter her up and drove up the light to head back to work. The car would no go into gear hardly at all, then I pumped the clutch again and noticed it was VERY light almost no resistance. A thought ran into my head.. "OH No! Slave cylinder, get this thing off the road, NOW" I managed to semi force it into gear with what little pressure in the clutch I had left and got it to a nearby strip mall parking lot. From there I knew I was in stuck. THe pedal was completely soft, and upon inspection of my reservoir, I found it was totally dry. I pushed my gal into a nice parking slot and took notice of the large pool of brake fluid on the asphalt. Well from there it was all a Hagerty show of force. I called my road side assistance, and within an hour they were there with an impressive flat bed. They got her on the truck without so much as a nick, and got me home. So now to the question... I have a spare clutch master cylinder, and a spare clutch hose that goes from the firewall to the slave. My money is on the hose, as 39 year old rubber is seldom in great shape. I already called up Courtesy Nissan and ordered a new slave cylinder (which was WAAAY more expensive than black dragon, so I am wondering if theirs is OEM and black dragons is more Beck and Arnley type stuff). So should I do a complete rebuild of the system or just fix what broke? I am a big believer in if it is not broken do not fix it, but also, most of this stuff looks to be orignial equipment. My car just turned 70658 miles. So what do you guys say... do a whole replace or just the part that is bad?