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Old 09-28-2012, 06:00 PM   #276
mitchbugeyerex143
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i know this thread is kinda old and this question may be irrelevant but i was just wondering if there is any issues in hooking a jdm v7 6spd onto a usdm 2.0 (2002) or if it just bolts right up no problem?
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Old 12-23-2012, 08:31 AM   #277
D-Rodman
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Great info, subscribed
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Old 02-06-2013, 12:01 AM   #278
Ghost23
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This is super helpful!!!!

I was thinking about it and seeing what would be cheaper doing a tranny swap or just buying an sti. The thing is I don't like the new STi's as much as I love the bodies of the pre hatchbacks. How much did it cost you guys to do yours yourself or with a professional or a shop? The scary part about it all is I feel like buying a used tranny that it has been beaten to hell and back and maybe just buying all new parts would be worth it. Any thoughts?
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Old 02-06-2013, 12:04 AM   #279
JR_
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This is super helpful!!!!

I was thinking about it and seeing what would be cheaper doing a tranny swap or just buying an sti. The thing is I don't like the new STi's as much as I love the bodies of the pre hatchbacks. How much did it cost you guys to do yours yourself or with a professional or a shop? The scary part about it all is I feel like buying a used tranny that it has been beaten to hell and back and maybe just buying all new parts would be worth it. Any thoughts?
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Old 02-14-2013, 12:16 PM   #280
scorpiodrew
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Default 6 spd swap

After destroying my 5 speed three separate times, I finally did the 6 spd swap on my 06 WRX TR about a year and a half ago. Found a seller on ebay selling all the necessary components for $3800. The purchase included an 04 STi Suretrac (non-DCCD controlled) transmission with all the shifter linkage (no shift knob though), front axles, auto drive shaft from WRX, the R180 rear end with all the housing brackets and bolts, rear axles, rear knuckles with e-brake cable, starter and everything else needed. The only issue I had was the seller sent a worn out clutch disc and flywheel leaving me to scramble and buy one. I had worked out a deal with him to peice together the parts as I had just recently did the Brembo swap a few months prior (so I didn't need any front brake components and only needed the rear rotors). Bought a genuine STi shift knob on ebay for $50... some people wanted hundreds for one which is a bit extreme in my book.

I did all the work myself with a friend but I've been working on cars since I was 16 so I had no doubts in performing the work. It took a few days total and at the time, I didn't realize I had a non-dccd tranny so I returned the manual DCCD controller I had purchased once I figured it out. I'm pretty satisfied with the swap. I knew the drive ratio was increasing to 3.90 but was expecting that extra gear would equal out to around the same as the old 5 spd set up considering the ratio was around 3.60... that's not the case. Car runs around 3000RPM at 65mph in 6th gear and it's a noticable difference. I love my Subie.
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Old 04-25-2013, 01:08 AM   #281
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Deffinitly going to do the "expensive" way, might as well do things right for Once on this damn money pit. So I have a 02 Wrx, previous owner put 06/07 rear brakes. Do I need to do brembos? Because that's serious $
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Old 04-25-2013, 09:31 AM   #282
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So I am starting my six speed swap and just have a few things that I am confused about. First here is the parts list:

2005 Subaru Baja Turbo (4EAT)
2005 STI 6 Speed Transmission
6mt Transmission Mount + Brace
6mt Slave cylinder
6mt Clutch + Flywheel
6mt R180 Rear Diff 3.90
6mt Factory Short Shifter assembly

From reading this post and a bunch of others you can supposedly use a WRX 4EAT drive shaft correct? Since this is a Baja I am planning to reuse my auto drive shaft.

My main question is the axles...I dont want to swap my hubs/rotors/brakes. So i'm assuming I need to do the Hybrid axles with the new races.. i dont have the link handy but I found it on this forum.

Can I use my 4EAT starter with the 05 6mt Transmission?

Thoughts?

Thanks!
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Old 04-25-2013, 09:40 AM   #283
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Quote:
Originally Posted by optikul81 View Post
So I am starting my six speed swap and just have a few things that I am confused about. First here is the parts list:

2005 Subaru Baja Turbo (4EAT)
2005 STI 6 Speed Transmission
6mt Transmission Mount + Brace
6mt Slave cylinder
6mt Clutch + Flywheel
6mt R180 Rear Diff 3.90
6mt Factory Short Shifter assembly

From reading this post and a bunch of others you can supposedly use a WRX 4EAT drive shaft correct? Since this is a Baja I am planning to reuse my auto drive shaft.

My main question is the axles...I dont want to swap my hubs/rotors/brakes. So i'm assuming I need to do the Hybrid axles with the new races.. i dont have the link handy but I found it on this forum.

Can I use my 4EAT starter with the 05 6mt Transmission?

Thoughts?

Thanks!
also look into 08 spec b axles with 06-07 wrx outer cvs on them for the rear. My stock wrx axles worked fine with the 6speed in the front
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Old 07-02-2013, 11:27 AM   #284
tmclaughlin83
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Default 07 STi swap into 06 WRX

Can anyone confirm this list is correct and not missing anything to do an 07 STi swap into my 06 WRX? Would be greatly appreciated
- 07 STi Transmission
- Clutch fork
- DCCD
- slave cylinder
- master cylinder
- shifter/ linkage
- Clutch and flywheel (I plan on going aftermarket)
- driveshaft

Now from what I've read I think I have to change the ring and pinion out of the r160 diff and also have the Sti drive shaft filed down?
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Old 07-02-2013, 12:15 PM   #285
03SubyWRX
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Why not just run the R180? You can keep your stock brakes using "gravel spec" rotors from Subaru or DBA. I think Ken from KNS Brakes can get them for you.
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Old 07-02-2013, 02:36 PM   #286
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Quote:
Originally Posted by tmclaughlin83 View Post
Can anyone confirm this list is correct and not missing anything to do an 07 STi swap into my 06 WRX? Would be greatly appreciated
- 07 STi Transmission
- Clutch fork
- DCCD
- slave cylinder
- master cylinder
- shifter/ linkage
- Clutch and flywheel (I plan on going aftermarket)
- driveshaft

Now from what I've read I think I have to change the ring and pinion out of the r160 diff and also have the Sti drive shaft filed down?
With that 07 6MT, you could use a 2002-05 WRX rear diff and an automatic trans drive shaft. Those two will bolt directly together and provide the correct ratio...easy and cost effective. There are other options but you will need to research those yourself.

Quote:
Originally Posted by 03SubyWRX View Post
Why not just run the R180? You can keep your stock brakes using "gravel spec" rotors from Subaru or DBA. I think Ken from KNS Brakes can get them for you.
That only addresses the WRXvsSTI brake issue and does nothing to deal with the axles he would have to run to keep his WRX rear knuckles. Changing his rear knuckles to STI parts was not something he implied he wanted to do.

Last edited by JarHarms; 07-02-2013 at 02:57 PM.
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Old 07-02-2013, 05:11 PM   #287
FlatironsTuning.com
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Quote:
Originally Posted by tmclaughlin83 View Post
Can anyone confirm this list is correct and not missing anything to do an 07 STi swap into my 06 WRX? Would be greatly appreciated
- 07 STi Transmission
- Clutch fork
- DCCD
- slave cylinder
- master cylinder
- shifter/ linkage
- Clutch and flywheel (I plan on going aftermarket)
- driveshaft

Now from what I've read I think I have to change the ring and pinion out of the r160 diff and also have the Sti drive shaft filed down?
In a 2006 and 2007 WRX, you do have the wrong R&P ratio, so you would have to either put in a 2002 - 2005 WRX rear diff, or the same year R&P to make the final drive correct.

If you are going to use an STI drive shaft, you will either have to re-drill the holes, or simply replace the flange on the end of the diff with the STI flange.

Quote:
Originally Posted by 03SubyWRX View Post
Why not just run the R180? You can keep your stock brakes using "gravel spec" rotors from Subaru or DBA. I think Ken from KNS Brakes can get them for you.
As far as keeping your stock brakes and hubs with an R180 diff, the best way to do this is to use Spec-B axles, and put on your WRX hub-side stubs to make everything work. This is actually not very hard to do, and will make sourcing brakes in the future easy.
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Old 07-02-2013, 10:58 PM   #288
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There is also the option of a member here who made custom cv races to mate your axle to an Sri in we to run an r180 diff and wrx brakes. I am looking at this as a wagon couldn't use the spec b axles I would assume.
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Old 08-01-2013, 08:44 PM   #289
rymaggi
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anyone know the skinny on swapping in a 2011 sti transmission? i see a lot of 07 and below information but nothing for a 2011 sti transmission into a wrx wagon?
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Old 08-02-2013, 10:04 AM   #290
02RexWI
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First problem I can think of is the VSS not being read from the transmission. There is a solution for this out there, but I can't remember what it's called.

I haven't seen a whole lot of information on gear ratios for the new models (MY 08'+)

Not sure if they kept the 3.9:1 final drive ratio with the 1.1:1 transfer gear or not...
If someone has a link to some information I'd be interested.
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Old 10-21-2013, 05:22 PM   #291
DOHBOYWRX
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Great Thread!!!!
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Old 01-02-2014, 11:37 PM   #292
izzynuff
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sorry for bumping this dead thread, I'm almost ready to do my swap and gonna keep the R160, where do I buy the 3.9 ring and pinion to swap in? and what would happen if the ratios were off?
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Old 01-03-2014, 01:09 AM   #293
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Better to just get another 160 with the right gear ratio. To replace ring and pinion means it needs to be properly fitted and preloaded. cost more than just buying a used 160 from someone who did the full swap already. By the way if your not sure what happens when the wrong gears are meshed together, do some more research and get some friends who know to help. don't blow the trans for a simple mistake.
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Old 01-03-2014, 11:38 AM   #294
izzynuff
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Thanks. I found these which helped so i'll probs just try to find one from an impreza

http://forums.nasioc.com/forums/show....php?t=1793850
http://forums.nasioc.com/forums/show....php?t=1349046
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Old 01-03-2014, 02:44 PM   #295
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Quote:
Originally Posted by rymaggi View Post
anyone know the skinny on swapping in a 2011 sti transmission? i see a lot of 07 and below information but nothing for a 2011 sti transmission into a wrx wagon?
Quote:
Originally Posted by 02RexWI View Post
First problem I can think of is the VSS not being read from the transmission. There is a solution for this out there, but I can't remember what it's called.

I haven't seen a whole lot of information on gear ratios for the new models (MY 08'+)

Not sure if they kept the 3.9:1 final drive ratio with the 1.1:1 transfer gear or not...
If someone has a link to some information I'd be interested.
I have a 2012 STI 6MT in my 2002 WRX. The USDM STI gear ratios are all the same for 07+. The 08+ does lose the dipstick and speed sensor mounting hole in the housing. I used the VSSPro to get a speed signal from the ABS and feed it into the ECU. You'll also need 04 STI front axles and an 04-07 STI driveshaft. If you don't swap to an R180 you'll need to swap the flange on the R160 (or drill out the holes). It is a 1.1:1 center diff so the 3.54 rear end will work fine.

It's all pretty basic if you know what parts you have and what parts you're getting. All the info should be out there if you search for it.

Quote:
Originally Posted by izzynuff View Post
sorry for bumping this dead thread, I'm almost ready to do my swap and gonna keep the R160, where do I buy the 3.9 ring and pinion to swap in? and what would happen if the ratios were off?
Quote:
Originally Posted by speedracerx9 View Post
Better to just get another 160 with the right gear ratio. To replace ring and pinion means it needs to be properly fitted and preloaded. cost more than just buying a used 160 from someone who did the full swap already. By the way if your not sure what happens when the wrong gears are meshed together, do some more research and get some friends who know to help. don't blow the trans for a simple mistake.
I agree. Rear diff swap is far easier.
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Old 03-05-2014, 07:24 PM   #296
Rootsphere
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Sooooo, wanting to swap in a 6MT DCCD into my 2012 WRX, has anyone done this yet? Any problems foreseen? Would older STI parts work?
Thanks
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Old 03-24-2014, 10:08 PM   #297
tersplat
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So, after doing some research, I have decided I want to the most cost effective 6 speed swap (2nd gear went out in my 03 wrx) I think my list is complete with everything I am going to need, someone please confirm or correct this.


06-07 STI 6 speed
04 Axle stubs with seals and circlips, and use current axles, or use late 04-07 wrx axles
Early 2004 Axle Seal Part Numbers (to be used with axle stubs / female axles):
Left: 806730041
Right: 806730042
Circlip Part Number: 805329010
6 speed linkages
6 speed shifter
6 speed shift knob
auto wrx drive shaft and drill out holes in R-160 yoke or STI DS andR180 yoke and yoke seal
I want to re-use my ACT streetlite flywheel and Exedy Stage 1 5 speed clutch, so I'll use the 6peed clutch fork and my 5 speed throwout bearing.


That is what I have gathered through my research. I'm not sure if I can use the late 04-07 front axles, but I haven't seen any reason why not, I have to replace my passenger axle anyways. Any help would be greatly appreciated.

Thanks!

Last edited by tersplat; 03-25-2014 at 09:35 AM. Reason: mistyped and put 02 instead of 03 for my car's year.
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Old 03-25-2014, 08:18 AM   #298
DOHBOYWRX
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Quote:
Originally Posted by tersplat View Post
So, after doing some research, I have decided I want to the most cost effective 6 speed swap (2nd gear went out in my 02 wrx) I think my list is complete with everything I am going to need, someone please confirm or correct this. 06-07 STI 6 speed 04 Axle stubs with seals and circlips, and use current axles, or use late 04-07 wrx axles Early 2004 Axle Seal Part Numbers (to be used with axle stubs / female axles): Left: 806730041 Right: 806730042 Circlip Part Number: 805329010 6 speed linkages 6 speed shifter 6 speed shift knob auto wrx drive shaft and drill out holes in R-160 yoke or STI DS andR180 yoke and yoke seal I want to re-use my ACT streetlite flywheel and Exedy Stage 1 5 speed clutch, so I'll use the 6peed clutch fork and my 5 speed throwout bearing. That is what I have gathered through my research. I'm not sure if I can use the late 04-07 front axles, but I haven't seen any reason why not, I have to replace my passenger axle anyways. Any help would be greatly appreciated. Thanks!

- Ok so a few things i noticed in your list. 1 if you are using your R160 rear diff and a automatic DS no need to drill any holes or to get the R180 yolk. Auto DS and R160 yolk bolt right up. 2. You can use any stock 04-07 wrx axles.

- I know its somewhere on here, but i de believe you will need to change your rear diff. Don't remember if the 02 is 1.1:1 or if its 1:1 center diff gearing. If its 1.1:1 than your good with the 06-07 sti tranny.

- I would also recommend you getting some type of DCCD controller so that your center diff is not always open.
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Old 03-25-2014, 01:14 PM   #299
tersplat
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Thank you for your response, I appreciate you straightening out the rear dif yoke holes for me, I don't know where I got the drilling from, but no need for that, which is good. From what I've read, the 03 WRX dif will work with the 06-07 trans due to the 1.1:1 center dif. my rear dif should have 3.54 gears in it. I think I am going to try and get the Spiider DCCD controller.
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Old 03-25-2014, 01:38 PM   #300
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Quote:
Originally Posted by tersplat View Post
Thank you for your response, I appreciate you straightening out the rear dif yoke holes for me, I don't know where I got the drilling from, but no need for that, which is good. From what I've read, the 03 WRX dif will work with the 06-07 trans due to the 1.1:1 center dif. my rear dif should have 3.54 gears in it. I think I am going to try and get the Spiider DCCD controller.
02 mt wrx have 3.54 rear diffs. I ran my stock 02 rear diff with a 06 6 speed, STi drive shaft and drilled out the R160 rear diff yoke and it worked no problem.

I later swaped to a 07 STi R180.

The rear diff input seal does not need to be changed if you put the R180 flange on a R160
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