For some reason I keep losing the my clutch adjustment after driving for a little bit. I can have it adjusted perfectly then I'll go drive it somewhere and when I try to drive it again its really hard to get in gear and the clutch grabs at the very bottom. It's almost like the cable is stretching out but I put a new one in along with a Zoom quadrant and it still does it. I'm tightening the jam nut on the end of the cable too so it can't be the nut coming loose. I'm to the point where I have to adjust my clutch after I get done driving it. What could be the problem? I don't have a FWA by the way. Any help is greatly appreciated.