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12-08-2011, 02:24 AM | #1 |
Scooby Newbie
Member#: 303291
Join Date: Dec 2011
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JDM Version 9 2007 Spec C Rasc+Rar (Matching Diff??)
Ok So i ordered a new 6 speed transmission from Nagano japanese from montreal. I am swaping it into my 02 usd wrx. They sent me the transmission JDM Version 9 2007 Spec C Rasc+Rar TY856WB8JA.. And a matching Diff. Well i hope? On the diff was written 3.9 but when i opened it it was a 3.54 gear set. It is a R180 LSD with a 3.54 gear set, Now my question is what rear diff gearing do i need for this 2007 spec C rar, 3.9 or 3.54 Unfortanuately the dealer is dumb and dosent know... Does anyone know if the centre diff is a 1.1.1 like a wrx because they have a final drive of 3.9 but because of the 1.1.1 centre diff they run a 3.54 rear diff. I have searched forum after forum and no informaiton is avaliable. Does anyone know for sure? dont want to fry the transmission!
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12-08-2011, 09:09 AM | #2 |
Scooby Guru
Member#: 120273
Join Date: Jul 2006
Chapter/Region:
SWIC
Location: AZ
Vehicle:06 WRBWRXWGN Now with 100% more Spec-C |
Give Rallispec a call. I can't seem to find that transmission code in my resources, but they might know. Great guys over there. If it's anything like the USDM 07 STi's, it's a 3.54, but JDM land is often different.
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12-09-2011, 12:14 PM | #3 |
Scooby Newbie
Member#: 303291
Join Date: Dec 2011
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Heres The Answer!
Well turns out that you need a r180 3.54 diff gearing and the transmission has a 3.9 final with a 1.1.1 centre diff. I would just like to thank DAVE at ralli spec for the information and help i would be totally lost without you!!! Thankyou verry verry much!
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03-01-2013, 07:59 PM | #4 |
Scooby Newbie
Member#: 263585
Join Date: Nov 2010
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