For future reference, the prebled master/slave combos are a favorite of mine. Napa has them for a decent price.
I got mine from 4wd.com, a little pricey but worth every penny, and has never leaked. *knock on wood* (I believe they are only for external slave setups tho)
if you're gonna bother pulling the trans, it's worth it to do the external slave cyl upgrade, that way the next time it leaks, the trans doesnt have to come out.
when I did it I just got a whole trans out of a manual cherokee on CL for like $200. and swapped the parts onto my trans (unknown if the cherokee trans is good, still on the shelf
1992 YJ 1"Body Lift, Slip Yoke Eliminator & CV Driveshaft,
2.5" TJ exhaust, WJ valve cover, XJ Computer, External Slave Cyl AX15,
Durango Steeringbox, No track or sway bars, CJ tailgate, on 31's :)