Evo 1 vs. Evo 2&3 rear differential

[cbrkp]

Hey all I was wondering if the rear differential between the 1 gsr vs. 2&3 are any different?

Thanks!

 

[CLuTZ]

No....

 

[Liberoz]

all rear diff parts and swappable

 

[EVO-00X]

Your question is a bit vague and it depends in what context you mean?

As far as the 3.909 diff ratio, physical size and how it bolts onto the car... then NO, there isnt a difference between the actual diff housing sizes.

But if you are talking about internals, then YES they are different.
* EVO 1 GSR has a viscous rear LSD centre and you will need the cups/shafts that go with it if you want to fit it into your car (its the only one out the EVO 1-3 range that came with a viscous rear diff)
* EVO 1 RS and EVO 2/3 all have mechanical clutch type rear LSD's centres.

There's a pretty in depth discussion about it in this forum... probably should be a sticky.

 

[VR-4Squid]

Your question is a bit vague and it depends in what context you mean?

As far as the 3.909 diff ratio, physical size and how it bolts onto the car... then NO, there isnt a difference between the actual diff housing sizes.

But if you are talking about internals, then YES they are different.
* EVO 1 GSR has a viscous rear LSD centre and you will need the cups/shafts that go with it if you want to fit it into your car (its the only one out the EVO 1-3 range that came with a viscous rear diff)
* EVO 1 RS and EVO 2/3 all have mechanical clutch type rear LSD's centres.

There's a pretty in depth discussion about it in this forum... probably should be a sticky.

yep, also
evo1 rs is 1 way
evo2 and 3 are 1.5 way

kthxbye

 

[cbrkp]

Great info!

That's what I was looking for.

I have a rear vicous coupling differential, what will I need to swap to a evo 2&3 rear differntial that is a mechanical 1.5 way?

 

[EVOCPE]

Just need to change the rear driveshafts with ones from either a open rear diff or mechanical rear diff

 

[cbrkp]

do you mean CV shafts? or center driveshaft that comes from the center transfer case? sorry just want to be clear as sometimes people mean other things or is misinterpreted

 

[VR-4Squid]

call them rear axles - only the inner cv's that plug into the diff need changing.