On my 95 the slave and master cylinder is sold as a unit. I had just replaced mine a couple of weeks ago. My systems were, no free travel, sagging pedal and tough shifting. My assembly cost around 160 bucks and it was an easy 15-20 minute swap out. no way to bleed my old unit. All is good now.
P.S. my old one got worse as the hotter it got.
1995, 4.0, 5 speed YJ, SOA, TC drop, 8.8 swap with 4.10 and LSD, e-grills bumper, 33" BF all terrains on 15" wheels.