'87 F-150 Clutch Problems...Hydralics?

I have an old truck that the clutch pedal system is hydralic(not mechanical) and the friction point is very close to the floor. There is no adjustment I can find and now the clutch doesn't fully disengage. Shifting is difficult. Does anyone know this clutch system and do I need to replace everything? Thanks for the info....

Check the reservoir, if the fluid gets too low, it can cause the sysmptoms you describe.