I did a search and was unable to find a similar problem. I have a 1998 Chevy C1500, 4.3 V6 5 Speed. The bleeder on my old slave cylinder began leaking so I went ahead and replaced the whole Slave Cylinder. After I installed it I went out to drive it and it slips after about 25% throttle and the first inch and a half of the clutch pedal is where the clutch engages/disengages:rage:. The clutch did not slip before the new slave cylinder, I inspected the clutch while I had the Tranny out and it still had good thickness and looked fine. I re-bled the clutch on x2 to no avail. It still slips. Any insight???