Originally Posted by woodie
Hello new to site and have a question? Im replacing the slave cylinder on a 91 wrangler internal. It has one mounting hole on it and a roll pin and retainer in the package The old one is missing or sheared off and I cant tell if it a bolt or what surely its held in place by more than a roll pin? I stopped working on putting the trans back in until Im 100% How this gos it appears this is what took the old one out twisting causing it to leak around the O ring Thanks for any help
Welcome to Wrangler Forum.
Lots of nice folks here with great information about jeeps.
I just got done replacing my clutch, pressure plate, pilot bearing, and slave cylinder. Mine is exactly like yours in my '92. Here is why it works. The roll pin is just a locator that keeps the thing from spinning. When you bring the bell housing back into position, the pressure plate diaphragm (all the fingers that look like pizza wedges) will contact the bearing surface at the end of the slave cylinder. That will compress it slightly. Then it will be firmly held in place. The first time you operate the clutch, the plastic bands holding the slave slightly compressed will release (they tell you not to break them before the install). The slave just sits there while the bearing on the clutch side of it spins up against the turning diaphragm as the diaphragm spins with the fly wheel. May seem a little flimsy but these have been providing adequate service for many years now. Just a pain to replace because they are inside the bell housing.