4 Speed with slave cylinder

[LILREDGMC]

Looking for someone who has been there and done that. 1985 3/4 454 4 spd, clutch pedal is generlly more stiff than my 71 GMC with same combo, only its a linkage clutch, not with the small master on brake pedal, and slave on clutch fork.

It's been stiff, engages close to floor, but generally acceptable. Now this week it started to feel different, and then trying to ease it into first, found the trans still turning. So good news, the clutch is fine but will not release, bad news, should I chase after the slave, or the master on the firewall.

The slave moves when the pedal is pushed, but appears not to move far enough. Filled reservoir, opened bleeder on slave, and allowed some fluid to pass. Then stroked pedal and held, opened bleeder, then closed after pedal hit floor. Still have the same scenario.

So, slave or master. Have you been there? Any other troubleshooting information would be appreciated.

Thanks

LILREDGMC