This problem started a few weeks ago on my 95 XJ. On warmer days (40+ F) it is becoming more difficult to put the shifter into gear when the vehicle is running. When it's cold (below freezing or lower), the problem is not as overt but still is there. When the engine is off, I can put it into gear no problem, which tells me linkage is okay. The clutch is only a few years old and does not grind when shifting at any point except occasionally reverse. It has always grabbed midway up but now it grabs at the floor and the pedal feels very "floppy". The clutch pedal does firm up when the engine is off and has sat cold for a while. I don't think it's the clutch. Fluid level is good in tranny, although could stand to be changed. The fluid in the clutch reservoir is brownish and not looking well. The level of fluid is full and I see no leaks that are obvious. If it is the clutch master cylinder, can that be changed independently of the BMC? I see a slave cylinder in a parts catalog but can't find one on my XJ? Is it internal? Have a cost sensitive recommendations on the order of troubleshooting? Thanks for any feedback.