border_boxer

The RX was the last Ru with a non-viscous traditional center diff, anybody want to concur? After doing a little more research, clearly the extra 10% of available torque to rear end comes from one end of the viscous coupling being... more viscous. So to answer my own question, the 4.44 5MT both exists and is rear biased. I guess the FWD drive fuse slot is a dummy in my car?

You are getting hung up on the word lock. It's just what the Subie brochure says. Obviously it is not a 4WD system. If the center could lock I would have a switch wired to my dash to make it do so. So you agree it is not a traditional mechanical differential.

The FWD fuse is kinda the smoking gun in my mind. Could not exist with a mechanical diff.

Again, all the data I am skimming through shows the 5MT with a "viscous locking center differntial". If some one can disprove this, please do?

I understand full well how a mechanical differential works. I did not think any thing post-RX used one in the center. My understanding is the center viscous-coupling was essentially a torque converter, moving power around via valves. You are saying that is just in the Auto? My car has a FWD fuse slot, and I have driven it with a broken propshaft. These don't seem like mechanical diff features?

I did not mention the FXT part in my post, sorry. Did not have that info when I posted. My understanding is the GD-era LS, OBS are 60/40 F/R torque split. But the fun cars - WRX, RS, FXT - are 40/60 F/R. Basically some trannies can do donuts and some can't Also the horrid understeer which is confused with stability by most of the market.

I just did a little more research, the 2004 FXT appears to be a 4.44 5-spd. I will have the seller double check the sticker on the diff but I think you are incorrect on this.

No modern Subarus are 1:1 nor do they have center diffs? It is 5-spd, bummer on the ratio if that is accurate.

Any hiccups with this swap? Is the Forester rear Bias? I'm on 27" AT's and could really use the extra gear.