MY12 STi Rear Diff ?
 

Hey Guys,

I was just wondering. Can I swap out a MY06 STi rear Diff from a newer 2012 STi ?

Are they compatible ?


Cheers :)

gearbox code? diff type of m12? these are all things people require to help you...

Thanks Spektre. My 6 spd GB code is: DW-TY856WG7KA.

With regards to the MY12 STi diff. All I know is it's from a Aus delivered STi. Does that help at all ?


[QUOTE=Spektre;823997]gearbox code? diff type of m12? these are all things people require to help you...[/QUOTE]

looks like that gearbox is a 3.54 final ratio. You will need to find out what the my12 sti diff is...

I will look into it. Thanks Spektre.


[QUOTE=Spektre;824006]looks like that gearbox is a 3.54 final ratio. You will need to find out what the my12 sti diff is...[/QUOTE]

Should be a 3:54 as well I have a 2010 sti 6 mt box that is

using the Perth-WRX mobile app

Cool... :)


[QUOTE=Jacob92;824013]Should be a 3:54 as well I have a 2010 sti 6 mt box that is

using the Perth-WRX mobile app[/QUOTE]

They should bolt up the same. Only difference is the '06 will be the last of the plated STi LSDs (except special models like spec C etc). And the '12 will be a helical gear LSD.

Does this mean the Plated STi lsd's are better than the 2012 Helical Diff?

Btw I noticed my rear Diff slightly whining when I reverse and turn slowly out of car park bays. From what I have been reading this is normal? I've never owned a STi so I'm not sure what is normal.

[QUOTE=Bram;824117]They should bolt up the same. Only difference is the '06 will be the last of the plated STi LSDs (except special models like spec C etc). And the '12 will be a helical gear LSD.[/QUOTE]

Depends on your definition of 'better'...

STi thought it better to go towards torsen LSDs from '07 onwards in regular STis. Yet kept the plated in more aggressive variants like spec C.

This seams to suggest they think the torsen is a better option for street sports cars where things like NVH and service life are important.... ie, they think people dont want thier expensive sports cars clunking when they go to the supermarket carpark. But think the plated is a better option for out right performance.

Not much wrong with the torsen units. Never once at the track no matter how much understeer, oversteer, lift off oversteer, snap oversteer and general shit driving and some good driving too, has my torsen diff ever done anything badly. It has always propelled my car forwards like it should, on street tyres and r-comps.

Sure if your chasing tenths of seconds at the track the clutch pack diffs might be better. The torsen units are virtually maintenance free also.

I have the spec c plated r180 it chopps up my driveway hard core when I'm turning to leave ....

On the track if you give it a little encouragement will oversteer very easily but I find it very controllable at the same time compared to my old diffs I've had

using the Perth-WRX mobile app

Good info men. Much appreciated!

why bother changing diffs??

I'm not changing my rear diff. There is nothing wrong with it. It's just mildly whiney while reversing and turning which is normal. I read if you pull your handbrake up one click this negates the noise apparently. Not that I've tried! Otherwise it's good to know I can throw in a newer model STi rear diff
if mine ever goes Bang!


[QUOTE=Wildbill;824272]why bother changing diffs??[/QUOTE]

[QUOTE=Wildbill;824272]why bother changing diffs??[/QUOTE]

You have clearly never driven with a VLSD....