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6MT Master Swap Thread


HAMMER DOWN

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Integroid, thanks alot for your input.

 

You wouldn't happen to have a measurement would you?

 

The drive shaft that came with my swap, we think was a 99 driveshaft, and it was previously on i'friese's wagon.

 

It measured 60 inches to the input flange and if you add that to the length it was 62. So approx 2 inches of the yoke/ flange goes into the tail of the transmission.

 

I think hammer said the shaft needed to be 63-68 but it looks like a total of 62 works on a wagon.

 

I'll know more this week when my 2.5i 4EAT legacy sedan shaft gets to me.

Edited by Scooby2.5
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Integroid, thanks alot for your input.

 

You wouldn't happen to have a measurement would you?

 

The drive shaft that came with my swap, we think was a 99 driveshaft, and it was previously on i'friese's wagon.

 

It measured 60 inches to the input flange and if you add that to the length it was 62. So approx 2 inches of the yoke/ flange goes into the tail of the transmission.

 

I think hammer said the shaft needed to be 63-68 but it looks like a total of 62 works on a wagon.

 

I'll know more this week when my 2.5i 4EAT legacy sedan shaft gets to me.

 

Post # 24 NSFW, just called Driveshaft Specialist 1-866-455-6622. Talked to Jeff. They have the info. on my drive shaft. Front shaft 24.12", rear shaft 36.12". Uses 1310 XL u-joint & 2002 Forrester Wagon A/T carrier bearing with 05 LGT carrier bearing mounting bracket to bolt to the drive shaft tunnel.

 

How to measure: http://www.thrashdriveshaft.com/Image/2pc%20Sheets/M2-3%202%20pc%20New%20Slip%20and%20Rear%20Flange%20Type%20Pinion%202009.JPG

 

63" min. is total length. You need a few inches of drive shaft yoke in side the tranny for surface contact for strength, back & forth movement & so it wont leak.

 

If I remember right. I have 4"-5" of drive shaft yoke , inside of the tail shaft housing. About 3\4" play before it bottoms out. The Subaru don't need back & forth play because the whole drive line is solid mounted.

 

Mike

Edited by HAMMER DOWN

Mileage:331487 Retired/Sold

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Well guys I really don't know what to think. I purchased I'frise 08 transmission swap from the marketplace.

 

He had the setup installed by Lachute performance in Montreal Canada and I pretty much got everything in the purchase I needed for install.

 

The setup from Lachute was in a 05 Legacy GT Wagon.

 

The driveshaft concerned me a bit since it was pretty rusted, especially around the carrier bearing so I decided to replace it.

 

The shaft that was sent was from an auto Legacy and i'frise thought it was around a 99 model.

 

It measures from the end that goes into the transmission to the end that bolts to the rearend 62 inches.

 

I purchased a 48,000 mile 2006 legacy 2.5i 4EAT drive shaft and received it today.

 

It has the slide coupler thing near the carrier bearing that goes in and out. When its pushed in the "in" position it measure close to 62 but maybe 61.5 or 61.75.

If you pull the slide coupler "out" by pulling on the back part of the shaft, it measures 63 or so...

 

As you can see the older driveshaft has a u-joint in the area where the slide coupler is on the newer one.

 

Also the bearing bracket is a hair off it seems.

 

I can't understand if the shaft needs to be 63 inches how i'frise was using the shaft I received at 62 inches....

 

Here are a couple of pics of the new shaft next to the old and a Link to ebay purchase:

 

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=170624413780&viewitem=&sspagename=STRK%3AMEWNX%3AIT#ht_1799wt_1167

 

http://gallery.me.com/gregnauman/100050/IMG_0693/web.jpg

 

http://gallery.me.com/gregnauman/100050/IMG_0695/web.jpg

Edited by Scooby2.5
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According to Opposed Forces website the shaft I got should work but it measures shorter than reported...

 

LEGACY B13

Usage information 27111AG05A or 27111AG01A

 

Date Body Engine Train Transmission Grade

'03, November — SEDAN 2500CC EMPI SOHC NA FULLTIME 4WD 4SP Automatic transmission 25I

'03, November — SEDAN 2500CC EMPI SOHC NA FULLTIME 4WD 4SP Automatic transmission 25I LIMITED

'08, March — SEDAN 2500CC EMPI SOHC NA FULLTIME 4WD 4SP Automatic transmission 25I BASE

'03, November — WAGON 2500CC EMPI SOHC NA FULLTIME 4WD 4SP Automatic transmission 25I

'03, November — '07, March WAGON 2500CC EMPI SOHC NA FULLTIME 4WD 4SP Automatic transmission 25I LIMITED

 

 

http://opposedforces.com/parts/info/27111AG05A/

 

 

Outback driveshaft has been reported to work by integroid but its a different part number

 

LEGACY B13

Usage information 27111AG15A or 27111AG11A

 

Date Body Engine Train Transmission Grade

'04, October — '07, March SEDAN OUTBACK 2500CC EMPI SOHC NA FULLTIME 4WD 4SP Automatic transmission 25I LIMITED

'03, November — WAGON OUTBACK 2500CC EMPI SOHC NA FULLTIME 4WD 4SP Automatic transmission 25I

'03, November — WAGON OUTBACK 2500CC EMPI SOHC NA FULLTIME 4WD 4SP Automatic transmission 25I LIMITED

'06, October — WAGON OUTBACK 2500CC EMPI SOHC NA FULLTIME 4WD 4SP Automatic transmission 25 BASE

'08, March — WAGON OUTBACK 2500CC EMPI SOHC NA FULLTIME 4WD 4SP Automatic transmission 25I LIMITED

 

http://opposedforces.com/parts/info/27111AG15A/

Edited by Scooby2.5
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Use this

http://www.thrashdriveshaft.com/Imag...ion%202009.JPG

 

Measure from the rear diff. flange to the center of the carrier bearing bolt. Then measure center of the carrier bearing bolt to the end of the tail shaft housing of the 5MT. Then measure the difference in the length between the 5MT & the 6MT. Do the math & you should be able to know before you do your swap witch drive shaft you can use. You want 2" to 3" of the slide yoke inside the tail shaft.

 

Mike

Edited by HAMMER DOWN

Mileage:331487 Retired/Sold

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Who has actually changed an 04 STi trans from the male stubs to the female. I read how it is just a matter of pulling the stubs, and changing the seal type, however my concern is the "sundial" on each side that adjusts the diff backlash. Did anyone have any issues?

 

If you personally went through this process please speak up! :)

 

Anyone? :-(

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I know hammer, I was just trying to understand how people were able to get the 2.5i shaft to work, because compared to your measurements 63-68 the 2.5i is too short.

 

Now the newer 2.5i shaft has a coupler in the rear shaft just before the carrier bearing (picture above) that seems to make the shaft shorter and longer but is that portion supposed to be pushed in all the way or pulled out?? Never seen a drive shaft like that before....

 

 

Use this

http://www.thrashdriveshaft.com/Imag...ion%202009.JPG

 

Measure from the rear diff. flange to the center of the carrier bearing bolt. Then measure center of the carrier bearing bolt to the end of the tail shaft housing of the 5MT. Then measure the difference in the length between the 5MT & the 6MT. Do the math & you should be able to know before you do your swap witch drive shaft you can use. You want 2" to 3" of the slide yoke inside the tail shaft.

 

Mike

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IDK, I had a custom made, repairable drive shaft for mine. I took other peoples word that the other drive shaft will work.

 

Quoted from you, "I think hammer said the shaft needed to be 63-68 but it looks like a total of 62 works on a wagon."

 

I can't find that I ever said 63"-68" would work. But I found this.

 

groff,

 

copied from my last post.

 

You can, from what I heard use a drive shaft out of 05 or new legacy A/T. If the A/T driveshaft overall length is between 63.50" & 63.88". It should work.

 

If your drive shaft is around this length, it should work. Hope this helps.

 

Mike

 

From Z0rr0 Quote:

Originally Posted by HAMMER DOWN http://legacygt.com/forums/skynetim/buttons/viewpost.gif

groff,

 

copied from my last post.

 

You can, from what I heard use a drive shaft out of 05 or new legacy A/T. If the A/T driveshaft overall length is between 63.50" & 63.88". It should work.

 

If your drive shaft is around this length, it should work. Hope this helps.

 

Mike

 

 

i can CONFIRM that this works. 2005 2.5i 4EAT propshaft. works great :)

 

 

Just trying to help.

 

Mike

Mileage:331487 Retired/Sold

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Anyone? :-(
groff & Z0rr0,did.

 

Quote:

Originally Posted by groff http://legacygt.com/forums/skynetim/buttons/viewpost.gif

deposit placed today for the following :spin:

 

2004 USDM STI 6sp transmission with shift linkage and knob

2004 STI Flywheel

2004 STI Slave Clutch Cylinder

2004 STI Starter

2004 STI Clutch Fork

2004 STI Front Axles (2)

2004 STI R180 Rear Differential

2004 STI Rear Axles (2)

 

OR

 

2006 USDM STI 6sp transmission with shift linkage and knob

2006 STI Flywheel

2006 STI Slave Clutch Cylinder

2006 STI Starter

2006 STI Clutch Fork

2006 STI Front Axles

 

I should know mid next week which package I'm getting as they haven't bought the donor car yet :lol:

 

I have until about 10am tomorrow to make a decision if I want to buy a 6MT SPEC 3+ clutch since SPEC will be going on vacation first week in July and isn't accepting orders (from vendors too) after tomorrow. Pretty sure this is what I'm going to get as I've been happy with my 3+ for the LGT for about 25,000 miles thus far :eek:

 

I'll be talking with my local shop tomorrow to see if they have a 2.5i donor driveshaft for me. I heard that a 4EAT driveshaft will work as well, though I'm not sure from what years. I found one for $50, just need to verify what years work here.

 

I know I'll need to get stubs, circlips and seals as well as fluid and hopefully that will cover nearly everything :lol: besides a dccd controller

 

will keep you all informed of my progress as well, probably wont go in until july unless i get too eager :lol:

 

 

groff...

 

you won't need the front axels. yours will work.. if it's a 2004, you pull the stubs out of the 6MT, and put a new set of 05+ axle seals in it. if it's an 06, you can just use your axels straight up.

you WILL have to change the rear diff, and again, you will use your axels.

 

to complete this swap, youll need:

 

6MT tranny

flywheel

6mt shift linkage

clutch

clutch fork / slave cyl.

2005+ 2.5i auto driveshaft

3.90 / 3.545?? rear diff.. (i got mine out of an 04 legacy non-lsd :mad:)

 

i have had this swap in my car for about 10k and 4 months, over 370whp.. i destroyed 1 rear diff playing in the gravel when i hit dry pavement, BOOM.. lol

 

just upgraded to a 35R :eek: so we'll see.

 

PS. if you want i can PM you my number, and we can talk in detail about my tirals and tribulations.. mike did it for me.. i'll do it for you :)

 

WELCOME to the 6MT SWAP CLUB, this list is short :)

 

Hope that help, Mike

Mileage:331487 Retired/Sold

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OK sorry about that I got my posters mixed up :redface: I thought it was you that had said that but i guess it was the other guys.

 

Oh well I guess Ill know soon enough if it works. I just couldn't figure out the length measurement against the 2005 and up shaft some said would work.

 

The only way it would be 63.5 or more on the 2006 2.5i 4EAT shaft I got is to pull the rear driveshaft section out where that slide coupler is by the carrier bearing.

 

Thanks again for all your research to do the swap.... I had followed this for years and I am FINALLY getting ready to do this.

 

Pretty excited to get this done......

 

IDK, I had a custom made, repairable drive shaft for mine. I took other peoples word that the other drive shaft will work.

 

Quoted from you, "I think hammer said the shaft needed to be 63-68 but it looks like a total of 62 works on a wagon."

 

I can't find that I ever said 63"-68" would work. But I found this.

 

 

 

From Z0rr0 Quote:

Originally Posted by HAMMER DOWN http://legacygt.com/forums/skynetim/buttons/viewpost.gif

groff,

 

copied from my last post.

 

You can, from what I heard use a drive shaft out of 05 or new legacy A/T. If the A/T driveshaft overall length is between 63.50" & 63.88". It should work.

 

If your drive shaft is around this length, it should work. Hope this helps.

 

Mike

 

 

i can CONFIRM that this works. 2005 2.5i 4EAT propshaft. works great :)

 

 

Just trying to help.

 

Mike

Edited by Scooby2.5
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Hi all, ive been referred here to ask this, as i understand you guys know alot about trans swap etc...

I have a '89 RS sedan, it currently has the original EJ20, 5spd that it comes out in. Now i think time has come and i want to strip it and rebuild it. Im looking to put a 6spd mt in it but i dont know how well this will work, suggestions from anyone with good knowledge or experience ??? Plan is to get over 800hp with a rebuilt engine or a newer engine. Thanks

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I found a definitive answer regarding replacing the front axle seals.

Turns out, early 04 models have a different differential cover plate, which does NOT allow removal of the seal from the outside (a la 5-speed transmissions)

 

http://forums.nasioc.com/forums/showpost.php?p=34593146&postcount=80

 

I removed my 04 trans, to confirm that I too, have this issue. :(

I will be having my local dealer replace them and check/set the backlash correctly. This is an area in which I do not want to screw anything up.

 

Edit!!!

You CANNOT use the older retainer plates with the stock legacy axles. You must use the newer plates... Seriously FML right now.

Edited by Kaos22B
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  • 3 weeks later...

Let me get this right before I start ordering parts.

 

This is what I think I need for a 5EAT to 6 speed swap.

  • 2004 STI 6 speed
  • 2004 R180
  • Rear 2007 spec B axles
  • 2007 spec b drive shaft
  • 6MT shift linkage
  • 6MT shifter
  • 6MT shift knob
  • 6MT slave cylinder
  • 6MT clutch fork
  • 2006 LGT 5MT peddle assembly
  • Manual ecu

Is there anything I am missing?

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Manual ecu

 

Are AT ECU's physically different from MT ones, or just programmed differently? If the latter spend $10 on an eBay KKL cable and flash an MT image when you're ready. There's a website out there with tons of stock Subaru ECU images. I forget what it's called, but if you can't find it PM me and I'll send you a stock image that will work.

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Let me get this right before I start ordering parts.

 

This is what I think I need for a 5EAT to 6 speed swap.

 

  • 2004 STI 6 speed
  • 2004 R180
  • Rear 2007 spec B axles
  • 2007 spec b drive shaft
  • 6MT shift linkage
  • 6MT shifter
  • 6MT shift knob
  • 6MT slave cylinder
  • 6MT clutch fork
  • 2006 LGT 5MT peddle assembly
  • Manual ecu

Is there anything I am missing?

 

clutch and flywheel. you'll also need the clutch master cylinder since you are going from 5eat to 6MT

 

i do not believe you have to change the ECU.. flash a manual rom onto it.

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A few 6 speed swap parts for sale:

http://legacygt.com/forums/showthread.php/fs-mo-sti-6-speed-swap-parts-05-5-speed-167691.html

 

As you can see from the picture the bottom one is the one being sold, It has a piece welded in to allow it to

be the correct rod length for the LGT. I decided to purchase the STS and that is what is on top for comparison.

It was modified by Lachute Performace.

 

For Sale:

 

http://gallery.me.com/gregnauman/100050/IMG_0641/web.jpg

Edited by Scooby2.5
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