I thought you had the external slave. For the internal you can run a early yj master. I ran a ax15 internal slave for 3 years. Went through 4 or 5 slaves. They would just start leaking. One lasted a year one lasted a month. I'm now running a external. What I was talking about is that the master/ slave for the external slave is sold as a one piece preassembled master/line/slave. I really didn't like that idea so I modified a different slave to work. The plastic assembly has issues.
Sorry for the hi-jack.....but I'm switching to an external AX15. Got any details on what you used for a master and slave?
'84 CJ-17: 17" stretch, locked Toy axles, 5.5" lift, FI, AX15, D300 w/twin sticks, boatsides & junk.