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jdm vs usdm gear ratios? help please

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Old 03-20-2003, 08:30 AM
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Default jdm vs usdm gear ratios? help please

do the usdm b16a2(3) trannies and the jdm b16a ones have the same gear ratios?? my friend has been driving at 4K rpm in fifth gear only doing 60 ish. he has a the b16a. if you have anythoughts we are open to suggestions to lower the rpm's. thnx


[Modified by 1slowcivic, 4:44 AM 3/21/2003]
Old 03-20-2003, 08:35 AM
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Default Re: jdm vs usdm gear ratios? help please (1slowcivic)

Same gearing on all of the hydro B16A trannies. Swap in a GSR 5th gear if you want to lower the cruising rpm.
Old 03-20-2003, 08:58 AM
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Default Re: jdm vs usdm gear ratios? help please (WAFFLES)

Same gearing on all of the hydro B16A trannies.
Correct.... also the same gearing & FD as the US ITR trannies, but w/out the LSD. The B16A2 tranny codes are either Y21 or SC4 for the 99-00 Si models.

Old 03-20-2003, 10:08 AM
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Default Re: jdm vs usdm gear ratios? help please (Newman)

Thanks for the codes Newman. I can never remember the numerous tranny codes.
Old 03-20-2003, 11:39 AM
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Default Re: jdm vs usdm gear ratios? help please (WAFFLES)

This will be a related question for this topic. A guy want to sell me a 99-00 Si Tranny with 4.785 final drive and ITR LSD for $1200. Do you all think that it is worth that much?
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