hey i know this has probably been brought up a billion times but i have searched and cant quit find what im looking for.. i have a 99 ranger 4.0 5 speed and my clutch is starting to get play in it ever once in a while, some times 3/4 play some times 1/2 the clutch is gone. still works for now but i know that wont last for long. i hear its the master cylinder, so if im right how hard would it be to replace myself and what years can i snag one from?

thank you very much
keaton