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Old 04-08-2013, 03:25 PM   #1
brett192
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Member#: 274252
Join Date: Feb 2011
Chapter/Region: W. Canada
Location: Vancouver Island, BC
Vehicle:
2002 WRX Sedan PSM
Stage 2 w/ 6 speed

Default 2002 WRX trans might be toast, advice on 04 sti trans swap needed.

Hey guys, yesterday I took a right hand corner pretty slowly and leisurely, and heard a pop sound from under the car about half way around the corner. Since this happened, I am hearing a clunking/rattling noise when I am driving above 20 mph in gear with clutch pushed in OR in neutral.

I can also hear the noise when I am in gear with little to no load on the transmission, but once I accelerate or decelerate to a degree it will quiet then go away. Car drives and feels fine except this clunking noise.

I haven't gone over 50 mph, the sound gets worse the faster you go, coasting down a hill at 40 mph in neutral sounds terrible.

Last transmission fluid change was last February at 101700 kms, and I found a full tooth on the magnet plug.

I just turned 139,500 kms today and drained the fluid to find a suprisingly small amount of metal, or atleast a lot less than I expected..



I have asked on my local forum and the general consensus is to start sourcing a replacement transmission.. what do you all think?

If a new trans is needed, one local guy says he has a 2004 STI trans with around 90k kms. Since the 04 STI is 5x100 hubs, would a transmission swap need different axles or driveshaft and rear diff? Or is it a direct bolt on?

Thanks
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Old 04-08-2013, 04:18 PM   #2
brett192
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Member#: 274252
Join Date: Feb 2011
Chapter/Region: W. Canada
Location: Vancouver Island, BC
Vehicle:
2002 WRX Sedan PSM
Stage 2 w/ 6 speed

Default

No wonder it seemed like there wasn't much metal, the other chunks were too big to fit through the drain hole!!



The flat crests on the two biggest chunks are different widths and I beleive they are helixed opposite directions, so that means they are off different gears.. the largest chunk is clearly from the front diff ring gear..



I noticed the clearance between the drain plug magnet and the ring gear is very small, so I think a peice of metal got stuck to the magnet, then when I took the right hand corner, it flopped over and got wedged between trans case and ring gear and theres the pop sound I heard.

LAME
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Old 04-08-2013, 04:43 PM   #3
Dakota D
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Join Date: Sep 2011
Chapter/Region: NWIC
Location: Billings,Mt
Vehicle:
2004 Subaru wrx
silver

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that's so weird that you were driving leisurely and this happened.so strange
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Old 04-08-2013, 04:51 PM   #4
brett192
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Member#: 274252
Join Date: Feb 2011
Chapter/Region: W. Canada
Location: Vancouver Island, BC
Vehicle:
2002 WRX Sedan PSM
Stage 2 w/ 6 speed

Default

Lol don't get me wrong, I drive the car hard, I am 23 and the car is stage 2.. But I really was taking it easy when it happened. Coasted around the corner and POP!

4 of the teeth on the front diff ring gear are toast. The other big peice I found is definately not from this gear, it helixes the wrong way.
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Old 04-08-2013, 05:23 PM   #5
brett192
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Member#: 274252
Join Date: Feb 2011
Chapter/Region: W. Canada
Location: Vancouver Island, BC
Vehicle:
2002 WRX Sedan PSM
Stage 2 w/ 6 speed

Default

Would a JDM V7 STI non-dccd transmission from a EJ207 bolt on to my EJ205 and work properly with my stock front axles, driveshaft and rear diff?
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Old 04-08-2013, 06:59 PM   #6
AgentJ17
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Location: Duncan, BC
Vehicle:
1995 STi RA
3-cyl conversion...

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You'll at least need a shorter length driveshaft for any 6mt swap.
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Old 04-08-2013, 07:03 PM   #7
Shortpersonbk
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Location: Michigan
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91 Miata
slow sti 6266 e-85

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Quote:
Originally Posted by brett192 View Post
Would a JDM V7 STI non-dccd transmission from a EJ207 bolt on to my EJ205 and work properly with my stock front axles, driveshaft and rear diff?
This plus 4eat drive shaft


thats what i have done
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