My clutch slave cylinder went out a couple of weeks ago. Amazingly it died on the street on the way home about 50 feet from my driveway. I've got all the parts lined up. Got both a new slave and and a new master cylinder. The only problem is that I can't get the rubber hose off (part # 31481A) off where it connects to the hydraulic tube (part # 31481) that runs to the master. I've tried everything. I've sprayed PB Blaster on it about 5 times. The thing absolutely won't budge. Now the nut is pretty chewed up. Should I replace the tube as well? If so, how? There's a bolt holding attaching it to the firewall behind the engine, and I can't get a wrench in there to save my life. The rubber hose also runs through a piece of metal thats welded to the firewall. How do I get it through there short of sawing it? Help!