Reply to "Slight clutch problem"

I made a few of these for our car and a couple of friends using Tilton's racing throwout system- different from Dennis' rig. Besides what Larry says about the seals, the biggest single problem with all such throwouts is getting enough free play. The quad-rings on which the system depends must have enough free pay WHEN HOT so the piston doesn't bottom. The quad ring seals linear back-and-forth motion only. If the piston bottoms, it will spin with the clutch and a few miles of that will destroy the ring. And you aren't gonna find parts at a roadside Kragens even if you could pull the ZF! Nevertheless, I have 20,000 miles on ours and Larry has at least that much, so if set up properly, they work fine, remove over 6 lbs from the powertrain and with a stock master, act like a long-throw slave cylinder. My rig gives 0.075" of throwout bearing travel, which a stocker gives maybe 0.035" and a long throw about .050" This extra distance prolongs the life of your ZF synchros by reducing clutch drag when shifting