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V6 R/RA drivetrain to early WRX

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Old 02 June 2007, 09:12 PM
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Turboleksu
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Question V6 R/RA drivetrain to early WRX

Are original early wrx drive shafts and propshaft direct fit to version 6 R/RA gearbox and rear diff? I suppose the rear diff is R180 -type in version 6? Or do I need shafts and hubs etc...

Last edited by Turboleksu; 02 June 2007 at 09:28 PM.
Old 03 June 2007, 06:56 AM
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911
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I think the V6 RA had the R160 diff.
The type R v5 v 6 had the R180.

IF this is the case then the prop is ok, but you may still have driveshaft probs as the RA diff is a plated unit and the WRX is either open or viscous rear.

The shafts are different.

Call David tomorrow at Welcome to the API website

He has racks of half shafts to select from.
Graham.
Old 03 June 2007, 09:06 AM
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Turboleksu
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So either way if the rear diff is R180 or R160 I will need rear drive shafts?

How about the gearbox? Does it fit to early wrx/gt drive shafts?

I'm planning to change front diff ratio from 4.444 to 3.9. Is there any subaru where is 3.9 rear diff? Then I could keep the dccd. Otherwise I'd have to change the transfer ratio from 1:1 to 1.1:1 to match my 3.545 rear diff and no dccd then for me.. Or is there a way?
Old 03 June 2007, 08:23 PM
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911
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UK gearboxes are 3.9.
The front shafts will fit
The R180 uses very rare sized driveshafts AND hubs to suit.
R160 simply need a different set of 'easy to find' shafts.

The expert is David at API. (and his transmission builder, Rob)

Graham
Old 10 July 2007, 10:04 AM
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Turboleksu
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Question

Is there a way to figure out that a rear diff has really 4.444 ratio? I'm getting strange noises from drivetrain and also lots of shaking when going over 70mph. The gearbox is version 6 type-R closeratio DCCD and reardiff is supposed to be R160 4.444. I dont have DCCD controller yet, so the gearbox is running in open mode.
Old 11 July 2007, 11:43 AM
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