If you are going to use the internal slave cylinder, that is actually what you are calling the throwout bearing. It is different between the BA and the AX15.
If you are going with the external slave setup, you need an actual throwout, or release, bearing for a 94-95 model.
Year model-wise, the pilot bearing changed sizes in 92 from a .59" to a .75" inner diameter.
If you are using the 96 you mentioned, you will need to change the pilot bearing. You might have to get one machined to fit. A clutch kit for that should include the throwout bearing.