Gear Ratio and LSD info

Flywheel, Clutch, Transmission, Axles, etc...

Moderators: Helpinators, Moderators

Psychoreo
Second Gear
Posts: 360
Joined: Tue Jan 18, 2005 11:07 pm
Location: Enfield, CT
Contact:

Post by Psychoreo » Sat Jun 30, 2007 4:01 am

A bit more information for the thread. A friend of mine is performing a v4 sti everything swap into his 95 impreza L. His tranny is as follows:

tranny code: TY752VBCAA

1st: 3.166
2nd: 1.882
3rd: 1.296
4th: 0.972
5th: 0.738

With a 4.444 final...Wacky
stupid electrical work...

bmxpunk
Third Gear
Posts: 810
Joined: Sun Apr 03, 2005 6:01 am
Location: Casper, WY
Contact:

Post by bmxpunk » Mon Oct 29, 2007 5:45 pm

Hey JOsh I was just doing some work to the mid late 90's Legacys with the 2.2 Na, for the 5mt's the final drives are 3.9, where the 2.5 were 4.11. I have had a few this week from 94-99 and the FSM was consistant to the above gears over that spread of years. Just thought I's add that...
2011 Mini Countryman S All4
1970 Honda Ct90
2001 Forester S of Doom - mowed down by a Cummins
1994/5/6/01/02/03/04/06/07/08 Impregacy OUtback SS STi Type R money pit- NEW RALLYCAR!!

FuJi K
First Gear
Posts: 87
Joined: Thu Mar 24, 2005 7:22 pm
Location: Twin Cities Metro, Minnesota

Post by FuJi K » Thu Dec 13, 2007 8:41 pm

I don't know if you guy have been reading up on my posts over on NASIOC or RS25.

These are ALL 5-SPEEDs.
90-94 Legacy 5spd: 4.111FD
95-99 Legacy 2.2L; excluding 2.5L: 3.900
96-99 Legacy 2.5GT/Outback 2.5L: 4.111
93-95 Impreza 1.8L: 4.111FD
96-01 Impreza 2.2L: 3.900
98-01 Impreza 2.5L: 4.111
02-03 Impreza 2.5RS: 4.111
04+ Impreza 2.5RS SPORT: 4.111
02+ Impreza 2.5TS/OBS: 3.900
04+ Impreza 2.5RS(non-sport): 3.900

This is from my reseach thus far.

Mod edit: Changed years to 1990-1994 Legacy 5spd
MY99 GF4 5spd DIY Modified

asc_up
Fifth Gear
Posts: 2473
Joined: Sun Sep 10, 2006 9:15 am
Location: University Place, WA

Post by asc_up » Thu Dec 13, 2007 9:24 pm

91-94 turbo legacys have a 3.9FD
-Aaron

2000 Audi S4 - 2.7L Twin-turbo, 6 Speed

[quote="evolutionmovement"]It was me. And those are my balls. Happy Sunday![/quote]

evolutionmovement
Knowledgeable
Knowledgeable
Posts: 9809
Joined: Mon Jun 16, 2003 11:20 pm
Location: Beverly, MA

Post by evolutionmovement » Thu Dec 13, 2007 9:25 pm

FD on a 1990-94 5MT fwd is 3.70. Turbo 5MTs are 3.90.
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.

legasee
In Neutral
Posts: 25
Joined: Thu Dec 21, 2006 4:21 am
Location: PNW

Post by legasee » Tue Dec 18, 2007 7:17 am

Anybody have information on the actual ratio's, like what Psychoreo posted a little while ago. I am interested to know each individual gear ratio. For a few Subaru gearboxes.

Any links or help would be greatly appreciated.

FuJi K
First Gear
Posts: 87
Joined: Thu Mar 24, 2005 7:22 pm
Location: Twin Cities Metro, Minnesota

Post by FuJi K » Wed Jan 02, 2008 12:51 am

legasee wrote:Anybody have information on the actual ratio's, like what Psychoreo posted a little while ago. I am interested to know each individual gear ratio. For a few Subaru gearboxes.

Any links or help would be greatly appreciated.
which ones are you looking at??
MY99 GF4 5spd DIY Modified

tyrone
In Neutral
Posts: 20
Joined: Mon Dec 11, 2006 3:07 am
Contact:

Post by tyrone » Mon Jan 28, 2008 8:02 pm

i have an auto 93..does anyone know what the ratio is because i want to find a 5 speed for it but i dont know what tranny to put in it..help please
i love my legacy

skid542
Fifth Gear
Posts: 2857
Joined: Fri Dec 26, 2003 6:37 am
Location: North Idaho
Contact:

Post by skid542 » Mon Jan 28, 2008 9:48 pm

Turbo or NA?
Lee

93' SS, 5mt swapped, 182k, not stock...
96' N/A OBW 5sp, 212k, Couple mods... RIP
99' N/A OBW, 4eat, mostly stock.

tyrone
In Neutral
Posts: 20
Joined: Mon Dec 11, 2006 3:07 am
Contact:

Post by tyrone » Tue Jan 29, 2008 4:15 pm

srry...na
i love my legacy

skid542
Fifth Gear
Posts: 2857
Joined: Fri Dec 26, 2003 6:37 am
Location: North Idaho
Contact:

Post by skid542 » Tue Jan 29, 2008 5:06 pm

You should be 4.11 I believe. Someone will pipe in and correct me if I'm wrong but I know that the 5sp AWD NA's are 4.11 and I'm very positive you are too.

On the back cover of the rear diff, likely under some road grime, is a ~1"x2" sticker that will verify that for you. Just wipe off the back and take a look.
Lee

93' SS, 5mt swapped, 182k, not stock...
96' N/A OBW 5sp, 212k, Couple mods... RIP
99' N/A OBW, 4eat, mostly stock.

asc_up
Fifth Gear
Posts: 2473
Joined: Sun Sep 10, 2006 9:15 am
Location: University Place, WA

Post by asc_up » Tue Jan 29, 2008 8:39 pm

It's 4.11
-Aaron

2000 Audi S4 - 2.7L Twin-turbo, 6 Speed

[quote="evolutionmovement"]It was me. And those are my balls. Happy Sunday![/quote]

ciper
Knowledgeable
Knowledgeable
Posts: 4387
Joined: Tue Oct 15, 2002 8:16 pm
Location: SFCA

Post by ciper » Fri May 09, 2008 11:14 pm

I believe this thread is missing the most important information of all, a differential code translation matrix.

Often you get a differential and you can't be sure what vehicle it came from. Even then you never know if it was swapped at some time. Even with the older style units the foil sticker is sometimes missing and you are left to guess. I searched high and low for this info and so far i haven't found it. Instead I went out and manually measured a bunch of differentials myself.

Code - axle type - LSD? - size - ratio
HB - female axles - open - R160 - 3.9
BK - male axles - LSD - r160 - 4.11
EF - male axles - LSD - r160 - 3.54
TR - male axles - open - r160 - 4.11


From what I can tell all differentials at least from the first generation legacys have this code painted on them in multiple spots.

I also posted this information on nasty cock, see this link http://forums.nasioc.com/forums/showpost.php?p=22235523

Can we modify the first post to start to include these codes?

BTW, if anyone cares my frankendiff has been working for many years without issue. I took a 4.44 LSD and a 4.11 open differential and put the VLSD carrier into the 4.11 case.
Last edited by ciper on Fri Jun 06, 2008 9:56 pm, edited 1 time in total.

ciper
Knowledgeable
Knowledgeable
Posts: 4387
Joined: Tue Oct 15, 2002 8:16 pm
Location: SFCA

Post by ciper » Fri Jun 06, 2008 9:56 pm

I made a mistake on the last post (a very fuking time consuming mistake). The TR is actually an open differential.

Also on a different not this page has many transmission code numbers and specs!
http://spda-online.ca/modules/tinyconte ... tc_28.html

sohc STi
In Neutral
Posts: 3
Joined: Wed Jun 18, 2008 6:27 am

Post by sohc STi » Mon Jun 30, 2008 4:09 am

lots of good info for manual trannys.

how about for those of us with auto's? mainly fd ratio's in what years.

sqc151
quasi-mod-o
quasi-mod-o
Posts: 1202
Joined: Wed Aug 29, 2007 2:14 am
Location: NY, NJ

Post by sqc151 » Wed Jun 17, 2009 8:52 pm

i dont see the ratio for a 95 legacy awd auto...

fishbone79
Second Gear
Posts: 502
Joined: Fri Sep 03, 2004 3:14 am
Location: Armpit, USA

Post by fishbone79 » Thu Jun 18, 2009 4:12 pm

OK, according to this (pdf) the 1995 Legacy AT has a 4.111 FD, while the MT has 3.900 FD... Exact opposite of the first gens.

Thanks to kimokalihi for those manuals, see this thread for the others: http://bbs.legacycentral.org/viewtopic.php?t=40325
Cheers,
morgan

1992 Legacy BF
1946 Ford 1.5 Ton Truck (The Beast): http://community.webshots.com/user/fishbone79

adema2626
Second Gear
Posts: 323
Joined: Thu Jul 27, 2006 12:39 am
Location: Corvallis, OR 97333
Contact:

Re: Gear Ratio and LSD info

Post by adema2626 » Fri Apr 02, 2010 10:41 pm

http://www.gearhack.com/myink/ViewPage. ... on%20Chart

This one has a ton of gear ratios. Doesn't do automatics though.
-Aaron

03 WRX, 3 port boost controller, XPT tune, 3" custom exhaust and intake, Kartboy hangers, WL front/rear sway bar and end-links, Koni struts, Nissan 4/2 pot brakes, Goodridge phantom SS lines, PnP headers/STI up-pipe

94 Imp wagon

79 Brat 4x4

WRXish
First Gear
Posts: 194
Joined: Fri Mar 25, 2016 2:48 pm
Location: Beautiful Downtown Goode, VA
Contact:

Re: Gear Ratio and LSD info

Post by WRXish » Fri Aug 12, 2016 7:15 pm

i need a compatible replacement tranny for my 91 legacy l, given that the rear end is a 4.11 what transmissions are compatible?

mike-tracy
Moderator
Moderator
Posts: 4913
Joined: Tue Aug 25, 2009 7:52 am
Location: Des Moines, Wa

Re: Gear Ratio and LSD info

Post by mike-tracy » Fri Aug 12, 2016 8:10 pm

All the 4.11 transmissions will work, until they got rid of the speedo gear in the transmission itself. So anything prior to 05 for legacys, and prior to 08 for impreza. If you are intending to keep the cable actuated clutch, then stick with 90s 4.11s for ease of swapping.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote:
Mon Jan 14, 2002 10:23 am
Wait....I'm confused now.

WRXish
First Gear
Posts: 194
Joined: Fri Mar 25, 2016 2:48 pm
Location: Beautiful Downtown Goode, VA
Contact:

Re: Gear Ratio and LSD info

Post by WRXish » Fri Aug 12, 2016 9:30 pm

Many thanks Mike, anybody you know have a good one laying around they want to sell in decent shape?

mike-tracy
Moderator
Moderator
Posts: 4913
Joined: Tue Aug 25, 2009 7:52 am
Location: Des Moines, Wa

Re: Gear Ratio and LSD info

Post by mike-tracy » Fri Aug 12, 2016 11:27 pm

The newer "phase 2" transmissions that appeared in the late 90s/early 2000s have twice as many bolt holes as the older stuff, but they still mount and bolt up just fine. That's what I'm using on my 92 Legacy, a 99 Impreza 8-bolt transmission.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote:
Mon Jan 14, 2002 10:23 am
Wait....I'm confused now.

LilLegacy
In Neutral
Posts: 11
Joined: Tue Jun 07, 2016 10:44 am
Location: Des Moines, WA

Re: Gear Ratio and LSD info

Post by LilLegacy » Sun Oct 09, 2016 8:14 am

I have a mt5 1993 legacy ss with a stock 3.90fd open diff. Can I swap in a 3.90fd 91/92 legacy ss vlsd using the rear axles already on my car?

If not, how hard is it to find the correct rear axle stubs? or is it possible to open up the axle housing and put the vlsd differential case into my open diff housing?
1993 Legacy SS 5mt, just getting started

mike-tracy
Moderator
Moderator
Posts: 4913
Joined: Tue Aug 25, 2009 7:52 am
Location: Des Moines, Wa

Re: Gear Ratio and LSD info

Post by mike-tracy » Sun Oct 09, 2016 6:36 pm

1. Only 91ss got vlsd, and 2. You need to get that Diff with the Stubs attached. Without the "unique to 91 VLSD diff only" stubs which are long out of production, the diff is useless. 3. Standard 90-94 legacy axles work.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote:
Mon Jan 14, 2002 10:23 am
Wait....I'm confused now.

Someperson
Fourth Gear
Posts: 1032
Joined: Wed Sep 19, 2012 3:58 am
Location: Plaistow,NH

Re: Gear Ratio and LSD info

Post by Someperson » Thu May 18, 2017 7:54 pm

94gt is 4.111 correct?
Blue 94GT dead and steadily parting out.
Silver 93 Fwd N/A sedan undergoing repairs
93 Winestone TW project
92 SS scrapped by my landlord...

Post Reply