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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

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