ok ACT has no clutch discs for 88 model zc's which happens to be the one ive got. so im just gonna put in my old clutch disc with the new act pressure plate and act flywheel, called act and they said they just use the stock clutch disc anyway and the only thing special was the pressure plate which i can still use. so thats how itll have to work. so for future reference if uve got an 88 u can not use the act clutch disc that comes with an act clutch kit, and just use the stock si 88 clutch disc instead, luckily i have one available for free, and i called my retailer and they will give me a credit on the disc i cant use. fourthgenhatch u were right, thanks for the heads up on the spline count.