1-3-2-4 Posted November 3, 2009 Share Posted November 3, 2009 I've checked ebay and they seem to all be for the R180 diffs. Been pondering over the idea of putting in a rear diff in the wagon.. the car is a 5 M/T so that means the rear Diff must be 3.44 right? And I'm pretty sure those OBX front diffs would fit fine right? Quote Link to comment Share on other sites More sharing options...
idosubaru Posted November 3, 2009 Share Posted November 3, 2009 helps to start with what vehicle you're talking about. nothing subaru makes has a 3.44 gear ratio so not sure what that is. manual trans EJ will be 3.9 or 4.11. as for LSD - what are you looking for? there are EJ rear LSD's, that would be the easiest option. as for fronts, yes there are a number of options and companies that make front LSD's. there's already quite a huge thread about them here started by WJM. Quote Link to comment Share on other sites More sharing options...
1-3-2-4 Posted November 3, 2009 Author Share Posted November 3, 2009 I don't know why my sig does not work.. but it's a 1995 Legacy L wagon as seen in my avatar. I'm not looking for a VLSD but something a little bit better then that. Quote Link to comment Share on other sites More sharing options...
idosubaru Posted November 3, 2009 Share Posted November 3, 2009 oh yeah, then there's a number of front diff options. yours is just standard EJ series front diff stuff. those are also interchangeable with EA series front diffs as well - at least with the 4EAT and manual trans they are. Subaru didn't change much about those for many years. as for the rears maybe you could convert an old EA series to work in an EJ? i haven't heard of anyone doing that so either they haven't tried or it's more work than most folks want to get into. someone recently posted that they thought their VLSD locked up in less than one revolution of slipping...i found it hard to believe but if that's even close to true they might be a better option than we think? not sure on your final drive. best to state the vehicle in the thread as sig's changem, cars change, or you could be talking about a different car or own multiple subaru's. Quote Link to comment Share on other sites More sharing options...
johnceggleston Posted November 3, 2009 Share Posted November 3, 2009 95 lego L 5 speed has a 3.9 rear diff. Quote Link to comment Share on other sites More sharing options...
1-3-2-4 Posted November 3, 2009 Author Share Posted November 3, 2009 Thanks for the info because I checked on the rear diff and I did not see any numbers.. not sure if it's on the top of the diff.. but I plan on trying to find one from a junk yard to open up.. I'm sure a VLSD would be easy to find but they are on the weak side and a decent one is $900+ Quote Link to comment Share on other sites More sharing options...
idosubaru Posted November 3, 2009 Share Posted November 3, 2009 I'm sure a VLSD would be easy to find but they are on the weak side and a decent one is $900+$900? should be able to pick those up for $100-$200? Quote Link to comment Share on other sites More sharing options...
1-3-2-4 Posted November 3, 2009 Author Share Posted November 3, 2009 well I ment $900+ for a TorSen type. I never got to really test my AWD when i brought the car the snow was pretty much all gone.. I thought about freezing water in pans but I think the weight of the car would crack the ice I think.. I was going to start with the rear since it's easy to get to. Quote Link to comment Share on other sites More sharing options...
1-3-2-4 Posted November 4, 2009 Author Share Posted November 4, 2009 question.. so where about is the gear ratio on the rear diff? I think trying to find a 3.9 and one with a LSD is going to be hard, no? Quote Link to comment Share on other sites More sharing options...
Twitch de la Brat Posted November 4, 2009 Share Posted November 4, 2009 question.. so where about is the gear ratio on the rear diff? I think trying to find a 3.9 and one with a LSD is going to be hard, no? It should be on the back of the diff, and it depends on how deep your pockets are and how diligently you can search junkyards. There may be an Outback out there with what you're looking for, but I'm not sure. Twitch Quote Link to comment Share on other sites More sharing options...
1-3-2-4 Posted November 4, 2009 Author Share Posted November 4, 2009 Is it safe to use this list here? http://wac.addr.com/auto/obs/lsd/lsd.html Quote Link to comment Share on other sites More sharing options...
Twitch de la Brat Posted November 4, 2009 Share Posted November 4, 2009 I'm not too sure if his list is completely accurate, but it would be good to take it with you to a junkyard for reference, and to see which models may have an LSD. Twitch Quote Link to comment Share on other sites More sharing options...
1-3-2-4 Posted November 4, 2009 Author Share Posted November 4, 2009 Ok.. because I know I had a 03 forester XS with a rear LSD but no place on the diff did it say LSD. Quote Link to comment Share on other sites More sharing options...
bheinen74 Posted November 4, 2009 Share Posted November 4, 2009 question.. so where about is the gear ratio on the rear diff? I think trying to find a 3.9 and one with a LSD is going to be hard, no? they stopped placing stickers on the rear diff indicating ratio, in 1995 Quote Link to comment Share on other sites More sharing options...
johnceggleston Posted November 4, 2009 Share Posted November 4, 2009 Ok.. because I know I had a 03 forester XS with a rear LSD but no place on the diff did it say LSD. i am not an expert, but my understanding that the only subaru built in the last 10 years lsd is the WRX (not viscous either mechanical, or clutch or ... i don't really know, but they are not viscous and they are sought after and they are expensive), and the ratio does not match my outback, legacy or GT. in 2001 vlsd became available on outbacks, 4.11 for manual and 4.44 for automatics. by 'o3 they were standard on outbacks and GTs, maybe more. they all bolt in the exact same way and you can mix and match, a 93 will bolt into an 04, no problem. Quote Link to comment Share on other sites More sharing options...
1-3-2-4 Posted November 4, 2009 Author Share Posted November 4, 2009 I know the STI uses a mechanical unit but as far as I understand everything else uses a VLSD in the rear. my thing is trying to find a 3.90 rear diff to take the guts out.. I'm pretty sure the LSD used axle stubs right and the non LSD did not have them? Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted November 5, 2009 Share Posted November 5, 2009 Best not to mess with the "guts" of a differential unless you have the tools to properly set the gears. Correct backlash and pinion depth are critical in a differential. If you get them wrong the gears will chew each other to pieces in no time. Quote Link to comment Share on other sites More sharing options...
1-3-2-4 Posted November 5, 2009 Author Share Posted November 5, 2009 Well from what I saw here no 3.900 diffs came with a LSD http://www.ultimatesubaru.org/forum/showthread.php?t=102113 and since I can't run anything else I'd need to swap the ring gear to the LSD I do have a FSM manual. Quote Link to comment Share on other sites More sharing options...
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