Just changed mine on a 99 Impreza Outback. Fairtax4me spelled it out pretty well. The time under the dash can be agonizing, blood rushing to the head and all. Getting the clip off for me was the challenge. Mine hadn't broken but I could feel a clicking when using the clutch. After I got the old one out the cable and housing were fine but the end piece at the pedal where it is (riveted?) was worn and would have eventually broken. Bought the cable a year ago when I replaced the clutch with 230K on the clock. But after replacing the clutch I blew off the cable until the clicking sound.
