I got mad and went to the junkyard and just started pulling slaves off nissan cars from 80s. There was a z in the yard so I kept bolting them up the z trans and made sure it worked. Check the bore size it should be stamped on the side of the slave, go to the yard and find one size smaller or even more smaller. Grab a few of them, and try them on your car, write down the name and year of the car, when one of them works, you can either go to the parts store and buy a new one of that size, or get your roll on. I chose the later and the slave hasnt broken yet, its been about a year and a half now. I use a 200sx, 83 or 85 im not sure, but the smaller size of it wiill be stamped on the case.