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Suggestions to ID ratios

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Old 18 October 2006, 12:50 PM
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dynomatt
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Default Suggestions to ID ratios

I've got a new 6 speed...the code is TY856WVCAA which seems to be a 2006 ish spec, non-DCCD box.

I've heard that the MY06 boxes are moving back to reduction gears in the rear end...specifically a 1.1:1 possibly...meaning my final drive in the diff might need to be 3.545.

Also, I'm not sure the 5th and 6th ratios are the close JDM ratios or the US taller ones.

Ideas to help? I've thought of turning splines, but as they are all female on the front diff, I can't easily see 1 x rotation.

And because the rear *might* have a reduction drive, I'm not sure what to read off it.

Thanks,
Matt
Old 18 October 2006, 04:21 PM
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David_Wallis
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we had a list of the gearbox codes on bbs.22b.com do a search on there
Old 18 October 2006, 08:55 PM
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dynomatt
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Thanks, I've searched, but the usual code lists are not that up to date, and this seems to be out of a newish car.

Although, reading the 22B forum, there's another member there that sounds like he's got the same box, but he was told it's out of an MY05 Legacy.

Hmmm...the plot thickens.

THanks,
Matt
Old 21 October 2006, 06:46 PM
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If you know that the front is a 3.9, then surely you just need to take the tail off the box and count the teeth on the drop gears?

30 / 30 = 3.9
33 / 30 = 3.54
Old 22 October 2006, 07:15 AM
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dynomatt
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Thanks for that. Is it easy enough to pull the rear nose off?

Looks like a handful of bolts, but was worried about reverse detent?

Matt
Old 22 October 2006, 08:27 AM
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911
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Call David at API ?
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