I had a bad chatter in my truck when letting the clutch out. I found that the clutch was covered in oil. I fixed the leaks, replaced the clutch and pressure plate and had the flywheel cut. All was good for a little while. Now the chatter is back, but the clutch is nice and clean. A friend told me that some aftermarket pressure plates are no good. I did notice that the clutch goes in a lot easier now. Does anyone have any ideas or know what brand of pressure plate would be good?