Reply to "Newer clutch slave"

That unit looks a little different from Dennis' early model that used internal aluminum jam-nuts to set clearances and no external spring. I agree with Larry- these can be tricky to set up correctly- and the clearances MUST be set such that when things heat up and expand, you still have enough internal clearance. NOT having enough clearance means the piston bottoms and spins with the throwout- and the quad-ring seal is not designed to soak up rotating motion- only in-and-out at very low speeds from the pedal. So within 50 miles, you'll have a leak. I built my system around a Tilton dirt-track racing assembly. Tilton uses a threaded tranny nosepiece and the slave threads up/down it, with a locking screw to set clearance. Needless to say, the ZF was not one of those systems offered by Tilton. The 3rd design Tilton came up with (in 1993) is still in our Pantera but I've had all 3 and the things out & apart 4 times getting it right. Then- being an optimist, I made one for a second Pantera and another for our '82 Z-28 with a Muncie 4-speed for autocrossing. The benefits are, once you do get it right, it works better than any stock monkey-motion system, is much more friction-free with a very light pedal (OEM clutch) and the longest throw possible, and is nearly 7 lbs lighter than stock. But they are expensive and I wouldn't recommend one for any Pantera owner without major overhaul capabilities in their home garage. And in spite of 20+ years of good service from my 'mk 3' adaption and for the second Pantera assembly, I still carry a complete spare Tilton with us on long trips.... You won't find parts along the highway for these!