You can reuse the slave cylinder and release fork, those are the same. But you will need a external slave 4.0 AX15 bellhousing. Bolt patterns between the engines and transmissions are completely different. The 4cyl ones will not work.
'93 YJ 4.0L, AX-15, NP-231HD/SYE, 8.8in rear, OME 2.5 lift, home made front hub conversion, hydroboost. Warn M10000 winch. Currently building a stroker.
'79 Cherokee Chief, 401 MPFI fuel injection, T-18/D-20 and hydroboost. Otherwise stock.