I have a 95 F150 with a M5R2 and it is extremely hard to shift. Yesterday I bled the hydraulics to the clutch and it worked last night but this morning it started doing it again. About a year or two I replaced the Clutch, Master Cylinder, Slave Cylinder, and I'm not entirely sure but am pretty positive I replaced the Pilot bearing also. If anyone has any similar problems, and have found a solution please let me know. I have searched some and read some thought it could be the synchronizers, but I have already torn my interior apart once to the four gasket and seals at the top of the tranny and wouldn't be to happy to do that again, but if worst comes to worst I guess ill have to do so. Until I find a solution I guess I'll have to just keep bleeding it every so often.

 

Just fixed it today and ended up my master cylinder went out, which is weird since I replaced it a little over two years.