My apologies as far as the clutch slave cylinder goes. I was refering to all of the other cars on the road as far as the location of the slave cylinder.
Well I dont have a five speed. Mine is an 1988 with auto trans. So I just looked up yours in my chiltons manual and it appeard that they call your slave cylinder a hydraulic concentric bearing. Why couldnt they put the dam thing on the outside like every other car on the road. If the problem is that unit you will have to remove your transmission to gain access to the thing. See if you have hydraluic fluid leaking from the bottom of bell housing.
Before removing the trans I would remove and inspect the master cylinder. When you pull it off if it is leaking you will see it. It may just be by-passing (not moving fluid) and that would cause a no clutch situation too. In either case by-passing or leaking it needs to be replaced.
You said it was loosing fluid so it has to be one of four things.
1. Leaking Master cylinder.
2. Leaking mastercylinder cap.
3. Leaking line.
4. Leaking hydraulic concentric bearing. (I bet this part is expensive because Jeep combined the pilot bearing with the slave cylinder into one component.
If you have to pull the tranny to replace the hydraulic concentric bearing you might as well replace the clutch disk and preassure plate at the same time.
Start at the top and work your way down.
Have fun.