My AX-15 clutch slave / master cylinder recommendation

[SkylinesSuck]

My OEM clutch master cylinder was leaking a little (not bad for 27 yrs old) so I decided to replace it. Of course I heard the standard recommendation for OEM which is either not available or like $500 so no thanks. Jerry repeatedly said Luk and/or Sachs was who made the Mopar stuff so I ordered a Luk. It lasted and 10 miles before the slave came apart while driving. Looked like the c-clip that held the piston in the cylinder worked itself loose.

Okay, limped it home, returned it, and ordered a Sachs. Both the slave and the master bodies were made of plastic, just like the Luk. The Sachs didn't explode at least, but it felt very jerky/sticky when I let the clutch out slowly. I tried lubing where it grabs the clutch pedal and where the plunger pushes on the clutch arm thingy. No dice. Decided to try another Luk unit to see if it was the same. It felt better, but still kinda sticky and halting as I let the clutch pedal out slowly. Returned that and tried the cheapest one Rockauto sells which was Perfection Clutch. I noticed immediately upon opening the box that the master and slave cylinder bodies were both made of metal, not plastic. Installed it and it feels great. Very smooth engagement. Looks much sturdier to boot. Anyways, just thought I'd share for those that are still manly enough to row their own gears

 

[MikekiM]

Well, I have gone through four MC/Slaves since October of '24.

The first was the OE (I assume, no way to know if the PO changed it, but I suspect not). It started to leak from the plunger inside the cab so I replaced it. I was in a jam with the Jeep apart so I went to a local parts store and bought a DuraLast. When the transmission went a month later it took the slave with it so I ordered the same one. DuraLast didn't last. It failed shortly after installing it, and it was creaky as all heck every time the clutch pedal was pressed. I ordered a LUK kit. When the National TOB installed with the new transmission went a few weeks ago it took the slave with it, again. This time I bit the bullet and ordered a Mopar kit. Yes, $500. I also installed a US built Mopar TOB. $270.

Like many of us here, I take the Jeep where a tow truck can't get to me. I am always alone and most failures are going to be something I can't fix myself. I'm chalking up the extra money to peace of mind. At least that's what I keep telling myself.

 

[SkylinesSuck]

Creaky. Yes, that was another thing I forgot. Very strange noises with the Luk and Sachs. If money was no object, I might have gone Mopar as well. Very happy with the sub-$100 Perfection Clutch unit though.

 

[SkylinesSuck]

Looking back at the pics now, I wonder if I should have painted it though? Looks like just raw cast steel.