Ok i have researched this whole site looking for someone to have the same prob. as me and... found no one.. so i need some ideas..i have a 2002 zx3 with well over 350whp and more torque. i have been into the tranny to put the quaife and all that good stuff. well today i was driving along and suddenly my car wouldnt let me shift.. i just put a clutch master stg 4 4 puck and a refinished fidanza flywheel into my car. when the car is off it goes into and out of all gears realitively normal. but will not go in at all when running doesnt even grind. i have no fluid leakage. my resevior is still full.. i replaced the throw out bearing and slave cylinder with the clutch, i have checked all the cables and nothing seems out of place or messed up... i did not get a pop in the pedal and the pedal still has pressure on it.. i have also tried to bleed the clutch thinking that somehow i got an air bubble in it.. and it bleed fine... WTF??? so ok im out of ideas..is there a way to check the slave cylinder without pulling the tranny? i know its knew but it could be bad...( I REALLY HOPE NOT) help me out please...