As far as I know, every Subaru hydraulic clutch except for the ones I mentioned above uses a single clutch hose M10x1.0mm inverted flare on one end and a 10mm banjo on the other end.
What I did for my car's clutch line was to get -3 AN adapters with 10mm banjos on them and then a 14" 90-degree-to-straight -3 AN stainless steel line from Earl's. I removed the damper entirely from the car, so the line goes straight from the master cylinder to the slave cylinder. On the WRX stock slave cylinder I used, I had to grind away a little bit of the steel around where the banjo fitting goes in order to clear the Earl's banjo, but with a different adapter or different slave cylinder that might not be necessary. The plumbing ended up costing me around $45 shipped and I have the advantage of having AN fittings. I can dig up the part numbers if you like.
Unfortunately it'll be a while before I'm in DC long enough to actually do anything other than sleep a night before driving back. It's crunch time on my thesis.
I haven't pulled a tranny from a Legacy, but I've pulled a motor, and I've pulled a tranny from a MkII Supra and also done a 5-speed conversion on another MkII Supra... the clutch job should be easy.
I'm just going to guess here, but the job should go something like this:
- Undo the strut-to-hub bolts, remove the axle spring pins, and pull the axles out of the transmission.
- Unbolt the rear driveshaft from the differential and pull it out of the transmission.
- Remove the turbo chimney, intake tubing, and washer fluid tank to give you room.
- Unbolt the slave cylinder from the transmission and tie it up somewhere out of the way.
- Unbolt the pitch stop mount.
- Disconnect the transmission wiring harness connectors near the pitch stop mount.
- Unthread the speedometer cable from the transmission.
- Remove the bolts holding the downpipe to the transmission.
- Undo the two starter bolts and tie the starter up somewhere out of the way.
- Undo the four other bellhousing bolts.
- Disconnect the wiring harness connectors going to the transmission.
- Get a jack under the transmission and unbolt the transmission crossmembers from the car.
- Pull the transmission off of the engine.
There's no reason you couldn't do the clutch job by yourself in a single day
if you had a transmission jack (a hydraulic jack with casters to roll on and
a cradle meant to hold a transmission). With a couple of people you could do
it without a transmission jack. Our cars are put together very sanely.