It's been 12 to 15 years since I did mine so memory is dim. I used whatever kit my local auto parts store had and it came with the throw-out bearing/slave cylinder, pressure plate, clutch disk and the pilot bushing that is pressed into the flywheel. I remember I had to buy the alignment tool separately.
My YJ is a '91 and may be a little different than yours. If I remember correctly, the bell-housing had Torx, SAE and metric bolts. I cussed most of the rainy weekend as I lay under the Jeep in the driveway, pulling the tranny and TXfer case all because the slave-cylinder leaked fluid. Then like a fool, I didn't replace the pressure plate and clutch plate because they had little wear.
The following weekend I changed a Toyota slave-cylinder in half an hour.