a98pmalcolm Posted January 9, 2017 Share Posted January 9, 2017 Hey all. So some have seen my diff went just for xmas, and I have been on the hunt for one, no luck so I ordered an Os Giken and will rebuild it at work, hopefully. I have a fear that my pinion and drive gear could be gone. The issues is if it has the JDM pinion and drive gear are no longer available, however it has come to my attention that the US ones are. The ratios are: JDM: 3.266 USA: 3.133 What differences will I notice by putting on a US ratio to my JDM diff. Thanks Paul Quote Link to comment Share on other sites More sharing options...
JamieP Posted January 9, 2017 Share Posted January 9, 2017 Yank ratio is same as UK TT6, I doubt you will notice difference mate. Quote Link to comment Share on other sites More sharing options...
a98pmalcolm Posted January 9, 2017 Author Share Posted January 9, 2017 Yank ratio is same as UK TT6, I doubt you will notice difference mate. Ok thanks Jamie Quote Link to comment Share on other sites More sharing options...
V8KILR Posted January 14, 2017 Share Posted January 14, 2017 Yank ratio is same as UK TT6, I doubt you will notice difference mate. I thought the UK Spec 6spd TT diff is the B03D diff, which is the 3.266 ratio, the same as Jap spec? The USA 6spd TT is 3.133 ratio. Quote Link to comment Share on other sites More sharing options...
a98pmalcolm Posted January 14, 2017 Author Share Posted January 14, 2017 I thought the UK Spec 6spd TT diff is the B03D diff, which is the 3.266 ratio, the same as Jap spec? The USA 6spd TT is 3.133 ratio. The us and uk spec share the same part numbers. The pinion and gear are no longer available as its discontinued but the UK/USA one is.. which is 3.133? Quote Link to comment Share on other sites More sharing options...
V8KILR Posted January 15, 2017 Share Posted January 15, 2017 The us and uk spec share the same part numbers. The pinion and gear are no longer available as its discontinued but the UK/USA one is.. which is 3.133? According to toyodiy.com, the UK 6 speed has the 3.266 ratio diff. http://www.toyodiy.com/parts/p_E_199310_TOYOTA_SUPRA_JZA80R-ALFVZW_4101.html Also this very accurate article on the USA Supra site says it is also 3.266. http://www.supraforums.com/forum/showthread.php?608545-JZA80-Differential-Info! Quote Link to comment Share on other sites More sharing options...
Mika Posted January 15, 2017 Share Posted January 15, 2017 US Supra 6spd differential ratio is 3.133:1, UK/EU/Japan Supra 6spd differential ratio is 3.267. Quote Link to comment Share on other sites More sharing options...
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