How do you replace the slave cylinder in a 1986 Nissan pickup truck?

First open bleeder screw on slave cylinder and drain fliud.Your slave cylinder is bolted on to your transmission with 2 bolts,take bolts out and remove fluid line from slave cylinder.Screw fluid line to new slave cylinder and set end of slave cylinder into fork position ,then screw 2 bolts in and fill clutch master cylinder with dot 3 brake fluid and pump clutch pedal a few times and hold to floor and open bleeder screw to let air out ,do this until all air is gone,dont let clutch master cylinder fluid get low while doing this,you might want to get a clear hose and attach to bleeder screw and other end in glass jar with brake fluid so you can see air coming out.