IW STi Forum banner
Cancel

STI tranny..... USDM vs JDM

1622 Views 4 Replies 5 Participants Last post by  Guru, 
T
I have read that the JDM tranny has a taller gear ratio in 6th.... does anyone know if the USDM has parts available to change final ratio, or if the JDM tranny is easily installable on the USDM STI?
I havent seen the particular question raised, which surprises me, as I have seen almost anyother swap discussed...

tannji
Reply
Save
Like
1 - 1 of 5 Posts
C
The car isn't even in our hands yet. Any answer to those questions is pure speculation.

And unless I'm missing something, I thought our 'American-ized' tranny was taller than the JDM tranny. Did you mean you want a shorter gear?

The USDM gearing is.....

3.636/2.375/1.761/1.346/0.971/0.756

Look around the site....I know we compared the JDM to USDM gearing somewhere before.
Reply
Save
Like
1 - 1 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
IW STi Forum
A forum community dedicated to Subaru Impreza and STI owners and enthusiasts. Come join the discussion about performance, engine builds, exhaust, modifications, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
GD-General 2.5 Liter/Litre Factory Motor GD-Members' Journals General Subaru Discussion 2015+ STI Discussion
Top