I have an 84 300zx and the clutch will not engage. I really mean will not engage. I can shift the gears without pushing the clutch petal down and they don't even grind. I bled the clutch and and checked the slave cylinder. I also check to see if the drive shaft turns when pushed. It does, so I know the rear end is good. I bought the car with this problem. So I can not tell you what happen leading this problem. I afraid I will have to drop the transmission to replace the clutch, but I was hoping someone has had this same problem and maybe has some insight on this. Thanks