Hi all, Lost the clutch. Pedal to the floor and surprise surprise no fluid in the master cylinder. Car hasn’t been driven over the winter save for a couple of mile blast a couple of weeks ago.  There is no evidence of fluid leak on garage floor but that aside inspection of the slave cylinder shows a lot of wear marks on the piston, even if the seal doesn’t look bad. Anyway decided that a new slave is in order, but the one removed has County S02 10 or SO2 10 and 7/8” on outer casting surface