1993 F150 ex cab 4.9L V6 manual transmission 5 speed (4 + OD) 80k on the odometer

Clutch peddle went to the floor and stayed. It about caused me to hit my other car.

What is broken (master cylinder, slave cylinder, etc.)?

Update: I added fluid to the master cylinder and then bleed the slave what little bit that I could, very little air came out, but that I added to the mastery cylinder never decreased (or went down). Is that a sign that it's the master and not the slave?

 

Sounds like the master went, if there is no fluid leak.

 

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when you bleed up the master cylinder make sure you tilt the end with the cap up. make sure you bleed it before you install it under the hood. air gets trapped inside it and it will never be right if you dont tilt the front. went through that bs on mine.

 

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i would replace the whole system. had to on mine