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Subaru Transmission Chart

DO u know any infor about these gear box code:

TY856WB7KA / JA??


/Foo, YC -
Thu, 01 Oct 2009 00:21:03 +0000

I believe the 06 STI 6 MT transmission code is TY856WW7MA

Fri, 05 Mar 2010 08:58:05 +0000

I have seen this chart on forums for a few years and find it very useful. Thank you for your efforts in compiling these data!! Is there a way for you to get these data from Australian spec transmissions, with full time AWD and the low range gear? I am having a very difficult time getting the data I am looking for regarding those transmissions and would greatly appreciate any help for folks (like you) who may have better sources to those data. Additionally, can you get similar South American Subaru transmission specifications, I think they will be the same as Australia, with the switchable low range gear not found in U.S. AWD Subaru transmission.


Tue, 17 Aug 2010 17:09:47 +0000

I see in your chart that an '01 Legecy Outback (US) with a 5 speed has a 3.9 final drive ratio, and an '02 WRX with a 5 speed also has a 3.9 final drive ratio. Is the final drive ratio the rear differential ratio? If not, what are the rear differential ratios of each of those vehicles? I am putting the '02 WRX tranny into an'01 Outback, and need to determine if I have to change the diff.


Wed, 29 Jun 2011 16:49:23 +0000

Can i swap a ty754vcada for a ty754vcaaa

Sat, 23 Jun 2012 05:08:29 +0400

do you kno the ty856uw1ma tranmission gear ratios

Fri, 20 Jul 2012 00:35:23 +0400

This chart was compiled by my company. We have an updated chart available. However, we request that if you will be using this data on a public forum outside of its original file that you credit our company as the author of the information.

Attached File: Transmission ID Chart_Public.pdf (152 KB)

RalliSpec Ltd.
Wed, 23 Oct 2013 19:10:04 +0400

does a 2005 Impreza RS, have the thicker gears. I think the transmission is TY754Vc4cA.

Thu, 14 Nov 2013 18:17:20 +0300

man what a life saver this info has just been,2 diffrent numbers on boxes ending 3aa & 4aa yet all figures are rhe same many many thanks od in my native tounge diolch yn fawr.

andy pem
Sat, 17 May 2014 17:21:03 +0400

anybody give me a better number than vb3aa for a subaru stock gearbox,got a vb4aa as lots of info shows me theyre same box for figures,motor producing circa 300bhp running 17in rims on tarmac rallying in uk.
[email protected]

andy pem
Sun, 18 May 2014 20:41:10 +0400

Just FYI, the 01-02 Outback 5MT (TY755VC2AA) has a 4.11 final drive, not a 3.90 final drive. Source: service manual for the 02 Outback, plus I opened one up and checked. I attached a page from the 2001 Outback manual; the 02 Outback manual says the same thing.

Attached File: 2001 Outback Transmission and Transaxle Section pg MT-2.pdf (29 KB)

Sat, 07 Jun 2014 22:41:04 +0400

I have a 93 impreza wagon L how do i find out my gear ratio its a 1.8 AWD automatic i was told it was a 3.9

Fri, 17 Oct 2014 10:28:47 +0400

Thank you for putting the time in to create this chart. It helped me find the 4:11 transmission that I wanted to put in my 1995 imprezza 1.8L. They come stock with the 3.90 and the 4:11 conversion makes all the difference in the world when it comes to going up hills and take off.

Attached Image:


Sat, 23 Apr 2016 00:17:13 +0400

Any info on Auto Transmition Final drive ratio

Johan Snyman
Tue, 21 Feb 2017 05:32:53 -0800

I opened TY752VBAAA twinturbo gearbox and there was 3,9 final drive. I have antoher TY752VBAAA gearbox also, I will check that one also soon.

Attached Image:


Sun, 19 Mar 2017 02:46:56 -0700

DO u know any infor about these gear box code: TY752XGBAA

Fri, 23 Jun 2017 00:24:33 -0700

What does the T.R. stand for?

justin mitchell
Thu, 18 Jan 2018 21:57:20 -0800

T.R. is transfer ratio. I updated the chart with acronyms.

Fri, 19 Jan 2018 19:02:20 -0800

Error for 2006-2007 US STI transmission final drive ratio.

It is actually 3.545 and not 3.9 like the 04-05 STI. Hence why the 06/07 STI transmissions are typical swaps for wrx owners as they match the R160 diff.

Mon, 22 Jan 2018 15:21:51 -0800

anyone know what clutch I can use to replace my stock one? TY753VB1AA

Max Bachynsky
Mon, 04 Jun 2018 19:46:17 -0700

A chart like this including AUDM & EUDM transmissions would be great. The updated PDF has no low range info!

Wed, 05 Sep 2018 16:27:19 -0700

What about the TY754XR1AB duel range manual 5 speed out of a 1999 subaru impreza. Im trying to fimd out the diff ratio but theres nothing.

Derek Conroy
Mon, 04 May 2020 22:14:45 -0700

Hi I have a gearbox ty752vb3da, think its out of an RA , its sitting in a 1997 impreza wrx estate ,could someone tell me if the drive shafts are the same with this gearbox as to the original gearbox,as need 2 driveshafts thanks ⁸

Attached Image:


Tue, 25 May 2021 06:48:34 -0700

I have a 2012 Outback with TY756VHCDA 6 speed manual transmission, I found a TY751VHZDA.
I founds a website that tells me what the digits mean everything looks good but the 5 place, #6 which is a 6MT and a #1 which I don't know what it means but it's also a 6 speed Manual??
ANy experts know if this will work??

Thanks much in advance

Bill Lawless
Fri, 01 Oct 2021 05:30:56 -0700

I have a 2004 non turbo forester. I Pulled the transmission off a 99 legacy GT at a wrecking yard for $420 and the fucking axels are different. Got home to swap and realized they're different. Anybody know if I can put the 99 legacy GT axles on my 2004 forester? I would appreciate any help. A call would be rad too im in panic mode. 661-364-5329

Attached Image:


Chris Francis
Sun, 13 Nov 2022 09:13:22 -0800

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