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R34 GT > GTT compatibilities

Jairn01

By Jairn01,
in R Series (R30, R31, R32, R33, R34)

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Jairn01 Contributor

Jairn01

Posted
Posted

 recently picked up a very clean example of an NA r34 and want to start dropping in some turbo parts I've got laying around. 

 

Wondering if anyone on here has chucked in a complete GTT Diff - is it straight drop in or will I have headaches?

Looking to upgrade to the nismo 1.5way - but I would prefer to use the complete turbo rear end if I'm able. 

 

Also. I have a complete manual conversion here waiting to drop in, but I need to confirm which clutch bearing carrier I need, 

Brand new R34 Gtt gearbox with push type conversion.

Any solid advice would be greatly appreciated.

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https://www.sau.com.au/forums/topic/485958-r34-gt-gtt-compatibilities/
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GTSBoy Grand Master

GTSBoy

Posted
Posted

Clutch is same same. Tailshaft is not. Diff will drop in. Half-shafts will not mate up (5x1 on turbo, 3x2 on NA). There is also the strong possibility that your auto NA gets its speed signal from the sensor on the diff, not the gearbag, and that will leave you without a speedo.

You can do all this, you just have to do a lot more than you thought.

Kinkstaah Grand Master

Kinkstaah

Posted
Posted

Ye, in terms of bolting up the "Conversion" from a GT to a GTT is effectively "Use GTT parts for everything"

Except the subframe itself, because you won't want a HICAS/4WS subframe.

Remember your ABS system will be different too, thanks to GT being the S15 3 sensor system, instead of the R34 4 sensor system for wheel speed.

I do not know how people get this to work given R34 diffs do not have a provision for an ABS sensor (they are on the tone wheels of the axles). I assume***** people use S15 gear/R34NA forever when they realize this - Or they convert it to a rear diff/axles that are R33 style which I presume has the singular speed sensor on the diff itself, but then you have to wire it all in and...and... and...

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