Keep having to adjust CLUTCH CABLE

Did the clutch on a 03 mustang gt, and since I've had to adjust the clutch cable I think 7 times, been stranded twice from clutch not disengaging all the way. First time with a cable clutch, whats going on? It's a new clutch cable and I know they stretch out a little and need adjustment once bedded in, but 7 times?! I'm just past half way through the adjustment and I don't wanna run out of adjustment, what I'm I doing wrong? Brand new everything in the Bellhousing and new cable. Adjust it, works perfectly for about a week then I can just feel the engagement point get closer and closer to the floor, so I just adjust it again.

Don't you pull the clutch pedal up to adjust the cable on those?

I heard that was the main reason that so many converted to the Willwood hydralic setup.... just saying.

My friend had issues with his clutch adjustment slipping so he upgraded the automatic adjuster and never had problems.

Not super familiar with Mustangs, but on most cable clutch cars there's an adjustment on the other end of the clutch arm as well as the cable, and if it was adjusted properly for clutch wear then the arm is at a terrible angle with a new clutch.  Usually the result is that the cable is really hard to pull, and generally it either stretches and breaks or the clutch arm starts to bend. 

If you put the new clutch in, and you're not sure you adjusted the other end of the arm, I would start there and hope you haven't bent the arm yet.

The adjustment in these is automatic, there is a quadrant on the clutch pedal that has the mechanism inside and they were known to fail a lot, or at least flex so much that you couldn't get a good adjustment.  The 1990s fix was a solid quadrant that you adjusted manually.  The 2020s fix is probably a change to hydraulics, because even with a solid quadrant, if you had a non stock clutch the cable and attaching points would often flex so much you had a hard time getting full disengagement even when everything else was right.

In reply to Knurled. :

It was the Quadrant Thank you!