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Old 05-04-2007, 12:50 AM   #51
BiggSean
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Quote:
Originally Posted by javastiwagon24 View Post
Sticky i think. " if this has been covered i havent read it" to make things clear. you can not use 5 speed clutch and flywheel. however you may use the 5 speed clutch disk. they seem to be alittle more affordable and i am currently running a six puck. the tobearing is the same. clutch fork is needed from 6 speed. the slave cylinders are identical the 6 speed is slightly thicker cast but is the same. i made the mistake of buying the 6 speed slave and paid 90 wasted money. u will need to get a auto wrx driveshaft or get yours shortened 1.5 inches of the front shaft. that is all i see that needed to be corrected thanks. ps if going with the 6 speed, yes it costs alot i didnt do much research on other stronger 5 speed gear sets i think i was driven toward the extra gear. but i will tell you what. i have an 05 sti trans, if you want to maintain the same 5th gear feeling the six speed is very close in same finial drive ratio. 3-4 are awesome, the whole car feels so much more refined. it feels as though you are always in boost and seems to get to 100+ way faster. hope this may help some of u stuck or trying to weigh the options ! "i was stranded for 1 month trying to figure out why the clutch was slipping." because i was told to use the 5 speed clutch and flywheel. good luck.
I'm using the 5 speed clutch and flywheel along with the STI clutchfork and it works like a charm. A friend of mine has been running this setup or quite some time on his 04 and has had nothing but great luck with as well.
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Old 05-09-2007, 05:34 PM   #52
sumfoo1
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Is the 07 legacy 6 speed the same as the 07 sti 6 speed w/o dccd?
Are the gear ratios the same?
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Old 05-17-2007, 10:28 PM   #53
16G4ME
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*** There may be a difference between the 05 axles and the 02-04 axles on the WRX. There may have been a change to the axle and some 05 wrx might be able to use their stock axles. I have not verified this, just read some threads suggesting it.

Has there been any verification of this info? I am in the middle of ordering my parts and am curious if this is true.
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Old 05-18-2007, 08:53 AM   #54
CoolRex
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The 05 axles have stubs on them that slide into the tranny. The 02-early 04 axles don't have stubs....the stubs are on the tranny itself. The axles slides onto those stubs and a pin locks in place.
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Old 05-19-2007, 05:55 AM   #55
v_dubbsub
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Default tranny Q's

i got a 2005 wrx auto, i wanna do a 5spd tranny swap what would i need to do it, and what some1 would like to trade for a auto
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Old 05-24-2007, 02:39 PM   #56
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My 6 sp swap is almost complete until I realized that the $1100 Drive Shaft shop axles do not have the metal covers near the diff. This suck because without that the seal will not last very long.
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Old 05-31-2007, 03:22 AM   #57
solarin006
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06 WRX's have a 3.70/1.0/3.70 R&P
06 STi's have a 3.90/1.1/3.54 R&P

For 6MT swaps into a 2006 (unsure about 07) WRX, you need to change to a 3.90 R&P if installing a 04-05 6MT or a 3.54 R&P if installing an 06 6MT.

Last edited by solarin006; 05-31-2007 at 03:36 AM.
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Old 06-01-2007, 05:48 PM   #58
AWD>FWD
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Quote:
Originally Posted by solarin006 View Post
06 WRX's have a 3.70/1.0/3.70 R&P
06 STi's have a 3.90/1.1/3.54 R&P

For 6MT swaps into a 2006 (unsure about 07) WRX, you need to change to a 3.90 R&P if installing a 04-05 6MT or a 3.54 R&P if installing an 06 6MT.
What is the rear R&P on the 05 STi rear diff?

What do I need to do for my clutch setup on my 06 WRX since they changed engagement styles in 06? To run the hubs I need the STi rear brakes but not the front? Do I need brembo's up front to run the front hubs? Can I just do an STi BBK instead?
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Old 06-01-2007, 06:37 PM   #59
solarin006
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05 STI's have a 3.90 R&P (in an r180 diff)

You'll need to swap slave cylinders, clutch fork and run an STi clutch.

To run 5x114.3 STi hubs in the rear, you'll need either STi rear brakes or 5x114.3 compatible aftermarket brakes (i.e. not WRX brakes). Also 5x114.3 bolt pattern wheels, STi axles, r180 rear end, and STi driveshaft.
However you can run stock wheels/axles/brakes if you change the ring and pinion in your r160 diff and run a driveshaft from an auto.

To run STi hubs up front you'll need STi front brakes or compatible aftermarket brakes (not WRX), STi axles. However I think the 06's have male axles, you'll need to research which 6MT tranny you have as to whether it'll hook up or if you can convert it.

Last edited by solarin006; 06-01-2007 at 06:42 PM.
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Old 06-03-2007, 03:45 PM   #60
svx_my_bay
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Quote:
Originally Posted by sumfoo1 View Post
Is the 07 legacy 6 speed the same as the 07 sti 6 speed w/o dccd?
Are the gear ratios the same?
Curious if there is an answere to this.
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Old 06-21-2007, 02:48 PM   #61
ilivas
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I wonder if I can just swap the 07 sti 3rd and 4th gear into my 04 tranny, as it seems all the other gears are the same.
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Old 08-28-2007, 12:12 AM   #62
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Quote:
Originally Posted by svx_my_bay View Post
Curious if there is an answere to this.
Not sure 100%...we had a guy do this swap, I will see if I can get some info on it.
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Old 08-28-2007, 12:48 AM   #63
domestic_abuser
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when swapping the hubs into my02, do I have to change anything else? Or is it just that straight up?
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Old 08-31-2007, 06:00 PM   #64
Bullitt 2496
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I swapped an 04 STi tranny into an 06 WRX. Reused my stock 06 axles, but they kept popping out of the tranny...

Switched to 04 STi axles, but now my ABS doesn't work and they were a real bitch to get in... :-/ Anyone else gone this route?
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Old 09-01-2007, 07:32 PM   #65
The_Anti_Hero
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i'm gathering the pieces to swap an USDM 04 STi trans into my bug, do i need a 6mt trans mount/crossmember?
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Old 09-02-2007, 11:48 PM   #66
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Quote:
Originally Posted by The_Anti_Hero View Post
i'm gathering the pieces to swap an USDM 04 STi trans into my bug, do i need a 6mt trans mount/crossmember?
Not sure on the crossmember, but I believe just the mount is what you need. The transmission is MUCH bigger.
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Old 09-04-2007, 07:36 PM   #67
Jpizzzle
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So i have a question about my late 04, or 05 STI trans swap into my 03 wrx. can i use the STI male CV shafts with my front hubs? or do i have to get the stubs from the dealer and use my WRX CV shafts? I thought i may have read somewhere that STI CV shafts can be used on the front, just not the rear.

Thanks in advance
Jon
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Old 09-06-2007, 05:45 PM   #68
Bala
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I am trying to find out what exactly is involved in doing a tranny swap from a 07 Legacy Spec B into 06 WRX.

Here are some questions i have:

Will I need Legacy's rear Diff? If so, what Diff does the Legacy comes with?
Will I have to use a different drive shaft? If so, which one?
If i do have to change the rear DIff in order to accomodate the Legacy's tranny, will i have to change the rear axles/hubs and brakes?

6 spd manual, spec.B only
1st 3.636
2nd 2.235
3rd 1.521
4th 1.137
5th 0.891
6th 0.707
final 3.454

Ok, I will start a parts list for this swap and you guys please correct me if i m wrong and also tell me what i need to add or take off the list.

2007 Legacy Spec B 6MT tranny swap into 2006 WRX:

1)2007 Legacy Spec B 6MT trasmission
2)SPT 6-speed short throw linkage
3)6-speed shift knob, STI lower dash peace with STI boot
4)2006 automatic trasmission drive shaft (please correct me if i am wrong)
5)6-speed clutch fork (please correct me if i am wrong)
6)STi slave cylinder (please correct me if i am wrong)
7)Reuse stock 2006 WRX rear Diff
8)Reuse Stock 2006 5-speed WRX clutch

Please confirm the above parts are correct or if i need to add additional parts

THanks

The reason I prefere to do the Legacy's Spec B tranny swap over the STI's is because it does not have the DCCD and the tranny itself is cheaper.

Please help, any comment welcomed.

Thanks.
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Old 09-13-2007, 02:33 PM   #69
InfamousDX
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Curious if anyone can point me to a swap thread regarding a 2007 USDM STI into a 2003 (or equivalent) USDM WRX. Looking to keep the factory r160 as well.
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Old 09-20-2007, 12:18 PM   #70
SubiSam
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My question is whether a tranny from a 98 legacy will accept an RA gearset and fit in my 03 WRX without a problem? I need a tranny soon, and I found a great deal on this one. I figure the RA gearset would solve the gear ratio problem if there is one, and if I'm gonna go that route all I need is a case to accept it. Right? Buying a broken tranny and replacing the gears should decrease the downtime of my baby. Is there a difference in the case of the Legacy trannys and the WRXs. Or is this a bad idea?

I'm a little bit ignorant as to what is compatable with what, but I've learned so much from reading your threads. great job guys!
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Old 09-20-2007, 07:36 PM   #71
crashtke
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My concern would be the center and front diff...probably different.
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Old 09-21-2007, 01:11 AM   #72
SubiSam
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Not sure what the final drive is on the '98, but it's my understanding that the '96 legacy has a 4.11 ratio. Probably the same with the '98. I beleive the RA gearsets come with a 3.90 though, so none of this should matter. Right? I'll have to change the rear diff no matter what.

Why would the center diff be an issue? This brings up another question. I've heard that the sti is rear wheel drive until the rear wheels slip and the wrx is front drive until the front wheels slip. Is there any truth to this, and if so, is there a way to reverse it? I always thought that symetrical awd meant equal power front and back. Are they both considered symetrical? Maybe this question is in the wronge thread, but if this is the case I might rather have the sti tranny. Maybe I'd have to win the lottery first though.
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Old 09-22-2007, 11:23 PM   #73
wrxvette009
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I just put an 05 STI swap into my 02 WRX. In a few months I wanted to have Neetronic install the DCCD. My question is not having that hooked up will not burn out any thing will it. Thanks
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Old 09-27-2007, 09:27 PM   #74
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Does anyone have a successful write up how to swap in a STI transmission from any STI year to a 2006 WRX? I am really looking forward to looking into this considering I am in need of the swap! Please pm me or post links thank you. Or would the 04 sti transmission work with the 06 WRX. I am asking because I read in this thread the clutch setup is different. Please specify Thank you.
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Old 10-02-2007, 08:50 PM   #75
swiftwrx06
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Bump

I need an answer to an axle stub question from those who have done this before.

I have an early 04sti "stubbed" trans, but my 06 wrx has male axles.
Can I just remove the stubs from the 6 speed and pop the wrx axles in? If they fit what else would I need? new circlips?
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