I didn't know the version 4 had r180, thought it was still r160. They've had the dccd optional from the beginning from what I've read. Have any pics of the differential?

 

DCCD is a catalog item from the beginning, not an "option". buy your WRX/STi and then order the catalog item and have dealer install.

if you bought a STi-RA 1995 model from version 2 they were dccd equipped oem. Version 1 sti-RA also should have had a DCCD OEM spec; this should be in the impreza bible and subaru oem spec catalog.

version 3 sti-ra was the first car that had a r180 in its model line, 1997 model year car, 1996 production. the v3 sti-ra had 11" non vented sliding rear brakes WITH R180 hubs and big e-brake. very special weird stuff.

 

I thought because if it has DCCD it's a R180, because it also has a different LSD.

If it's R160, it will bolt in to stock hubs right?
Easier for me, just less of a baller status. :flame:

I'll try to get a picture sometime, when I'm less busy. The differential is stored away and still in the packaging.

 

R160 will bolt in and axles will fit hubs. Dccd wasn't just available in r180 setups.

just for fun:

 

2slo4u is correct. I'm in the process of replacing/upgrading diffs. There are many Imprezas, WRXs, and STIs with R160s up front.

EDIT: Also, thanks for the video which will hopefully educate some people on the fact that Ken Block did NOT invent Gymkhana.

 

people think that ken block invented gymkhana? he doesn't even claim to have invented it...

people are stupid lol.:screwy:

 

Ah okay, so my differential is an R160?

Therefore, if it's R160 it will fit my stock hubs? :banana:

 

Dont listen to anyone posting. There is only one way to check to make sure.

DCCD transmission will have 2 wires coming out of the center diff area to control the DCCD. non dccd will not. that is all.

the R180 diff is bigger than r160. get a known r160 and place next to r160 -compare. its physically LARGER.

r180 axels will not mate with r160- too big to fit into the diff.. try putting the axel from your JDM set into a known usa rear diff -then you will know what it is.

if you have R180 axels, the hub side will be TOO BIG to fit into the 2.5RS hub.

GC8 Version 2 sti-ra was the last STi-RA to have R160.

Version 3 STi-RA /sti-R was the first car with R180. subsequently all STi-RA/R had R180 rear with big hubs, big e-brake and axels to go with.

only STi-RA/typeR has r180 from version 3-6. normal sti and wrx-ra gets same r160 as everyone else.


if you find that your diff and axels indeed are R180 you have 2 easy choices:

install rear hubs from usa 6 speed STi; they are R180 and plug and play into your GC8. I did this.

install rear R160 4.44 and axels to pair with your transmission; this would be plug and play into the usa GC8 and be just like factory japan sti version 3/4/5/6.

 

Subadave over on nasioc has outlined the procedure for making hybrid axles to mate an R180 with the smaller hubs of R160 equipped cars....which I think is the original question of the thread...

The outer CV's can be swapped onto the R180 axle shaft with R180 inner CV (DOJ).

 

yes, hybrid axel it. def an option for those who are willing to poopsmith the axels or have a good axel shop service avail.

OP could just sell old hubs and old axels, and buy some nice 10 year newer GDB hubs to pnp.

even the 5x114 GDB stuff can be converted to 5x100 factory style, so dont need to change wheels for gc8 use. Local friend did that to keep some fancy wheels

gdb 5-114 hubs also have stronger bearings etc.

 

Yeah, no crap a ring180 is 20mm bigger than a ring160. Hence the names. Are you just talking about the rear diff or front?

 

all GC8 is 5-100 from subaru factory. R180+ 5x100 was my GC8; all r180 gc8 from subaru factory is 5-100. knuckle and track unchanged, its GC8 suspension geometry.

GDB 5-100 hubs seem wider than gc8 but this still needs to be verified via measuring.

5-114 came out usa in 2005 sti

version 7/8 JDM sti was 5-100, version 9+ in japan was 114.

DCCD for GC8 is stupid, does not adjust on its own (no brain power). default (un-powered) is 65% rear, and its fastest on tarmac/track in dry conditions like that.

 

Damn, I found some people selling 5x100 R180 GD hubs.
I guess they won't fit then...

 

/\ cool info

 

Except that the DCCDPro controller is stupid easy to hook up and give a 5mt DCCD better maps than the STi has now.

Doing it this way myself....Type UK DCCD unit onto a friggin OBS box(?) with the dccdpro controller. WAY better than any of the STi's I've driven......

 

There is new one for sale on fleabay currently, not too expensive either.

 

Wow none of you knew that Ver.4 Type-R and RA = R180 in the rear and DCCD? front axles and hubs are the same. Rear's aren't. Find JDM rear hubs + 2 pots.

Otherwise you're only resort is custom hybrid axles which is just stupid.

 

5x114 didn't arrive until '05. Have you ever heard of GC8 5-spoke goldies coming in 5x114? :facepalm:

How arrogant... Of course most people realy into subarus know the 04sti was the only usdm sti with 5x100 and that the 5x114 sti started in 05 in the US, but we're discussing mating older usdm rear parts with jdm rear r160 dccd and/or jdm rear r180 parts. It was already stated that there were gc versions with dccd setups and 5x100 hubs so what is your problem? Do you have something against people trying to learn via public discussion? We don't all live in Japan or know every version of wheel / hub / kuckle / spindle / axle / diff that came with every version jdm wrx.

 

Moose dropping mad knowledge BOMBS in this thread!!

That being said... I've got 4 R180 hubs from a V3 DCCD TYPE RA, for sale.

 

Version 3 sti-RA is dccd 5 speed trans+r180 and 11" sliding non vented rear brakes.

They are not 2 pots!!!
Version 4 sti-RA went to 2 pot rears, version 3 sti-RA used an in-between setup.

special version 3 sti-RA only r180 size e brake with big 11" rotor; this is a "h6 2000 legacy" rotor - but with big e brake. No USA rotor is conpatible but any non vented disc USA rear caliper IS compatible (ala 2.5rs gc8 USA).

Blakemono had these on his v3 sti-RA imported everything and had to puzzle this out; he probably has a source for part number or aftermarket rotors for sti3ra rear.

 

+1 but they are non-abs I have 2 pairs of these V3 knuckles (these fit under my 15" wheels) + the 4.44 R180 / DCCD set-up from a V4 STi-R...
&
+1 on the R160 3.9 FD on the V2 STi RA I got one of these + a R160 4.44 M-LSD just in case I go 5-6 speed DCCD & do not want to swap knuckle...

IS there a way to make the V3 STi R/RA Rear knuckle ABS - I was thinking of using hubs/tone rings from a '04 STi...?...

R180 axles are THICK & will not fit into a R160 hub...

 

Sorry, I honestly kinda thought OP was talking about the front diff, as rear is a bit easier to change. I forget not many other people than me care about ALL the diffs, instead of the rear.

 

I'm also certain that I need the front hubs to fit the axles too, correct?

 

I used all 4 2004 jdm version 8 5-100 hubs on my GC8 with gc8 axels on my 1995 dccd RA trans.

reference;


We used oem stubs on a 04 jdm forrester 5mt turbo trans to convert female trans to male trans to mate to stock 2002 wrx front axels (same as gc8). 5mt-5mt

subaru had this stub thing in the catalog around 2004, a good parts counter guy would be able to find it.


5 speed trans from any GC8 impreza 1992-2001 is all pnp with 2.5 RS 5mt front axels (or any other 5mt front axels for that matter)

from my experience 5mt axels are longer than 4eat in the front. I fit an auto axel in my 5 speed car once and it made funny noises driving around, had to extend the CV a bit to get the inner punch pin in.

Yeah my V2 5 injector DCCD STi RA swaps had A/C too ? ABS as I did not have knuckles for the V2 (RS brakes) but I assumed no ABS as the later V3 & V4 R/RA knuckles I had were non-ABS.

I'll Look for the Forester ABS conversion.

^The ABS Tone Rings may have changed @ some point as I remember reading about folks having ABS problems with mismatched new rear / old front knuckles.

AC was standard equip on V2 sti-RA v-limited (really a street car with lower final drive), very popular dealer installed option on all cars without AC from subaru, all owners in japan really- even if buying competition models may want AC as Japan is......HUMID!!!!!

Think I have seen AC installed on early WRX-RA with 5 injector (non sti, with the true rally box). perhaps somebody does not like to sweat while going sideways on dirt>>

 

Edited because I made a boo boo.

 

HOLY FRIGGIN CRAP^^^^

The rear axle setup is the ONLY THING that is R160/R180 specific. The front hubs are interchangeable from ALL 5MT's and even the 6MT's. I am current using 5MT front axles in my V5 Type R with a 2005 GDB Spec C 6MT. There is no such thing as a R180 FRONT HUB....

The only thing that matters with the front hubs is the lug bolt pattern is the same as the rear. Unless of course your running some weird setup with different lugs/wheel bolt patterns front and rear...

I have never seen so much mis-information in one thread before.

 

Holy friggin crap, I will edit my post. So apparently you don't need 6mt axles in the front, and you can run the same frickin 5mt axles. So if he gets jdm 5x100 r180 rear knuckles and hubs he will be able to keep his usdm rs front knuckles and hubs, correct? And if he uses usdm r180 rear hubs and kuckles he will have to convert the fronts to 5x114 knuckles and hubs then, correct?

Go ahead and jump on the bandwagon with jwalker. So much nasioc in this thread. Sucks some people can't just correct someone rather than throw a fit online.

HOLY FRIGGIN CRAP^^^^

The rear axle setup is the ONLY THING that is R160/R180 specific. The front hubs are interchangeable from ALL 5MT's and even the 6MT's. I am current using 5MT front axles in my V5 Type R with a 2005 GDB Spec C 6MT.

The only thing that matters with the front hubs is the lug bolt pattern is the same as the rear. Unless of course your running some weird setup with different lugs/wheel bolt patterns front and rear...

I have never seen so much mis-information in one thread before.

 

Yeah my V2 5 injector DCCD STi RA swaps had A/C too ? ABS as I did not have knuckles for the V2 (RS brakes) but I assumed no ABS as the later V3 & V4 R/RA knuckles I had were non-ABS.

I'll Look for the Forester ABS conversion.

^The ABS Tone Rings may have changed @ some point as I remember reading about folks having ABS problems with mismatched new rear / old front knuckles.

 

Dude, I don't pretend to know everything about these cars. But I do know abouit things that I have personally experianced. There is a lot of people out there who don't understand what works and how. Then they get on the internet and start posting things that 1) don't make sense mechanically or logically and 2) they have little or no experiance in the matter they are commenting on.

To answer your question about the front hubs:

GDB front axles/hubs are different. They have an ABS sensor in a different location then GC8 ABS cars. The GDB front axle is much thicker and stronger than a GC8 axle. (Speaking of JDM V7+ ABS STi's) I don't know about the USDM '04 STi, never had my hands on one. The Brembo brakes from (at least) 2004 GDB's will work on ANY GC8 front hub.

If you did a 6MT swap don't use GDB front axles, use the GC8 axles. The sub shaft on the tranny has the same spline count/diameter/location as a 5MT.

Nothing personal, its just the internet. Know your sh*t before answering question. People base their purchases on information like this.

 

Dude, I don't pretend to know everything about these cars. But I do know abouit things that I have personally experianced.

http://forums.nasioc.com/forums/showthread.php?p=33884417#post33884417
http://forums.nasioc.com/forums/showthread.php?t=2150062
http://forums.nasioc.com/forums/showthread.php?p=33774950#post33774950
Yeah, "we here in jdm land try to dispell myth from fact"
We all make errors, but not everyone goes overboard with providing correct information.

No need to feel like you know more than someone or they are saying the same thing and copying you.

There you go, assuming you know what I feel. Where do you get the idea I "know more than someone" or think they are copying me? I was stating someone was echoing what another had already posted which was my point. Like when you are in a dicussion with two other people and second person just says "Yeah, what he said" to everthing the other says. :lol: Apparently you are also upping your post count and cluttering this thread, you could have posted this via pm.

Hey don't put this on me.
The front differential is open on the 98 Type-R STi and I heard speculation that it's different, so that's why I asked.

I'm not accusing you for anything, sorry if you took it that way. One of the guys stated it had already been answered, but apparently it had not been clarified enough... so you asked the question. That was my point. I also hear speculation from senior members on these things sometimes and have to ask around.

 

I'll get it eventually and hands on experience does get you there quicker, I just don't appreciate the snide comments and e attitude. I don't do that to others here and don't appreciate it. If you have a problem with something I post feel free to pm me and I'll correct it or maybe just let me know its incorrect. I can tell you I'm not the only one in this thread who posts "misinformation".

 

Don't post information if it's wrong. Mis-information can be worse then no info. All that does is add to your post count and clutters a thread.
If the information is correct, more than one person will say the same thing. No need to feel like you know more than someone or they are saying the same thing and copying you.

 

Haha, anyway...I was wrong about that. Last time I checked they pointed that out already. No one's perfect, like you or me. I got my ass handed to me. Like you did. That's what I get for trusting local knowledge and Wikipedia.

But if you think my mistake somehow makes all my previous statements about "front R180 hubs" void...sure.

Go digging for more dirt on anyone who point out your wrongs and you'll never get anywhere.

 

Apparently your interpretation of what I think is very wrong. Nowhere did I say something you posted about this r180 issue was incorrect. I appreciate the knowledge people share, just not the attitude. Sometimes you have to play dirty when someone won't step off their high horse to remind them they are still learning as well. I would be willing to allow a mod to delete my posts if the rest of the messy replies related to my incorrect posts were also deleted.

 

i want to confirm this, on 04 rear hubs the abs tone rings are on the hubs, so therefore you would be able to use any rear r180 axle with the 06 r180 rear diff?

 

Yes sir. As long as your tone rings match your hubs, you're fine.

6mt front stubs are a different size than the 5mt front stubs.

I've tried to fit the 5mt front stubs into a 6mt trans, it doesn't work. I've got the part numbers for exactly what you need for the fronts when doing a 6mt swap.

Otherwise, 5mt stock car... 5mt new trans... if you've got stubs in your 5mt, you can pull them out and put them into the JDM trans.

 

And which tone rings match which yr axles?

 

Just remove the ABS bulb from your cluster, and pull your ABS fuse. Problem solved.