Well, i recently installed a hydraulic clutch setup in my 83 Gmc pickup. I got a new master, and a new slave cylinder. I cannot get the clutch to bleed out all the way. I have free play about half way to the ground in the pedal. I've tried gravity bleeding it, bleeding it holding the slave at a 45 degree angle, bench bleeding, and pumping the hell out of the pedal. I also bought a mighty vac and tried it with that. I cannot figure it out. I just wanna get this thing bled so i can sell the truck. Any other hints or tips would be appreciated.