Diff. gear ration?
Posted: Wed Oct 01, 2003 8:39 pm
Does all the 91 Legacy turbo no matter 4dr, 5dr auto or 5speed are come with 3.900 LSD diff?
Please help for identify!
Thanks
Please help for identify!
Thanks
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Diff. gear ration?
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Posted: Wed Oct 01, 2003 9:11 pm
Yes, all US-spec BC/BF Turbos have 3.900 final drive ratios.
Posted: Wed Oct 01, 2003 9:56 pm
I mean did all the 91 comes with LSD at the rear?
Or just some of them comes with LSD?
Ben
Or just some of them comes with LSD?
Ben
Posted: Wed Oct 01, 2003 10:03 pm
Oh, sorry, I misunderstood.
Some but not all 1991 models came with LSDs. (There were no touring wagons in 1991, by the way.)
Some but not all 1991 models came with LSDs. (There were no touring wagons in 1991, by the way.)
Posted: Thu Oct 02, 2003 12:06 am
How can you tell if it has a lsd back there? Would it be bigger than say a 90 awd rear diff?
Posted: Thu Oct 02, 2003 12:08 am
There'll be a sticker on the back of it that says 3.900 LSD. Amazingly enough, it stays on after all these years! 
Posted: Thu Oct 02, 2003 2:57 am
I was pretty sure almost all or at least a majority of the 91's came with LSD.....after that 92-94.....it was more spotty.
Posted: Thu Oct 02, 2003 3:15 am
Yeah, I've been led to believe that when I want to add LSD, to look for a 91. It's a shame it wasn't more popular or available.
Posted: Thu Oct 02, 2003 4:03 am
Thanks for all the info, since I just called the wrecker for the rear diff. and the guy told me he had a 91 Legacy turbo wagon auto tranny with 3.900 rear diff. but he can't find the word of LSD,so I would like to make sure before I buy it!
Ben
Ben
Posted: Thu Oct 02, 2003 4:59 am
Few more questions, Can I use a Ver.5 WRX LSD Diff. on to the Legacy turbo?
Is it hard to make it to fits on the 3.900 Gear ratio?
Since I could get the whole rear suspension from a Ver.5 that comes with the LSD Diff. in 4.444 gear ratio, could I take the LSD apart and put it to the old Legacy gear set and make it fits to the Legacy?
What other parts I needs to do this kind of conversion?
Please help
Ben
Is it hard to make it to fits on the 3.900 Gear ratio?
Since I could get the whole rear suspension from a Ver.5 that comes with the LSD Diff. in 4.444 gear ratio, could I take the LSD apart and put it to the old Legacy gear set and make it fits to the Legacy?
What other parts I needs to do this kind of conversion?
Please help
Ben
Posted: Thu Oct 02, 2003 5:45 am
only the turbos had it though, correct?
Posted: Thu Oct 02, 2003 7:13 am
I just changed the diff fluids and my car say it is 4.111, is this a bad thing?
Posted: Thu Oct 02, 2003 7:59 am
It's not bad to change your diff fluid, if that's what you're asking
MK
MK
Posted: Thu Oct 02, 2003 3:11 pm
Laurel, yes, only the turbos had LSDs.
sullione, your car's got a 4.111 final drive, that's all. I think in 1991 all 4WD non-turbos had a 4.111 final drive ratio.
Ben, your wrecker is mistaken. There were no 91 turbo wagons. The touring wagon was introduced in 1992.
Here is what the sticker should look like:
http://www.graphics.cornell.edu/~v/pics ... bo_lsd.jpg
If it's not part number 27011AA131 and/or it doesn't say "VISCOUS LSD" on it, it's not an LSD from a Legacy Turbo. If you're looking for an LSD, though, I believe ciper is still trying to sell his.
sullione, your car's got a 4.111 final drive, that's all. I think in 1991 all 4WD non-turbos had a 4.111 final drive ratio.
Ben, your wrecker is mistaken. There were no 91 turbo wagons. The touring wagon was introduced in 1992.
Here is what the sticker should look like:
http://www.graphics.cornell.edu/~v/pics ... bo_lsd.jpg
If it's not part number 27011AA131 and/or it doesn't say "VISCOUS LSD" on it, it's not an LSD from a Legacy Turbo. If you're looking for an LSD, though, I believe ciper is still trying to sell his.