Hi all: I own a '73 (10/72) FJ40. A previous owner swapped the 3-speed (J30?) for the 4-speed (H42?) (working on correct code lingo for the 40-series - bear with me). Only information I got about the 4-speed is that it "came from a newer FJ40", so I am not sure which generation of the 4-speed I have. When it was purchased and before I picked it up, repairs were made to the clutch plate (which I was told was worn to nearly to the point of no-operation). Been problem-free since those repairs (in another city) for most of six months. However, I was driving about last weekend when the clutch suddenly stopped disengaging. Clutch will go to the floor and return without providing any resistance. Can shift gears when the vehicle is off, but not when the vehicle is running. The vehicle will start and drive around in whatever gear it happens to be in when the vehicle is started. Surveying the components, the clutch master cylinder looks like this: Hose does not appear to be cracked or leak, and it is not disconnected. Fluid levels are as you see. The clutch slave cylinder looks like this: Currently focused on the clutch slave rod, which does not appear to align with the clutch slave cylinder when the clutch pedal is depressed. Questions: 1) From the photo and description, does it seem like the clutch slave rod is shot? Or is the clutch slave assembly shot? 2) If it is the clutch slave rod, could I replace without replacing the whole clutch slave cylinder? 3) If the clutch slave cylinder seems to be done for (or should be replaced anyway, which would likely be done in tandem with the master cylinder), what would be the suggested replacement? a) A set based on the vintage of the vehicle, so one for a '73 (10/72) FJ40? b) A set based on the swapped-in 4-speed transmission, if the type of transmission makes a difference? c) An upgrade kit to upgrade from pre-8/74 to post-8/74 from SOR or CCOT? I would appreciate any help - thanks for your time!