I am having trouble with the south bend clutch in my truck. Its an 02 with a SB DD and about every two weeks I am flushing new fluid through the clutch cylinder cause it will black it out. This last time I did it there was heavier black sediment laying in the bottom of the cup after I flushed new fluid through it. The clutch never has disengaged all the way when I press the pedal but its far enough to get it into gear just takes a second for it to fall into gear. Sometimes when Im pulling up to a stop with the pedal pressed in the clutch will momentarily reengage and then kick back out or at times if im idling along it will just stick and not separate at all. The clutch holds just fine and doesnt slip a bit. It seems to me the line is coming apart from the inside and it is maybe bulging when I press the pedal down. Not sure on this but it seems feesable. After I flush new fluid in it it will work somewhat better for a few days and then go back to shit and I will have to flush it again. Has anyone else had trouble like this? thanks in advance mike