If you have a choice, grab the later ’93½-up external slave version of the transmission and bellhousing (right). It is much more reliable than the early setup. In a year we had only found one such setup and when we got it off the Jeep, the bellhousing was cracked. We were working with Advance Adapters on another story and saw a stack of used AX-15 bellhousings sitting at the shop. The company has both new and used bellhousings as well as all the other parts you need to upgrade to hydraulic clutch linkage. To swap from an internal slave to an external, you need to nab a bellhousing, a slave cylinder, an input bearing retainer, a clutch fork, and a hydraulic line.