I sourced a few used transmissions for my 3.0 anyone know what to look for when I pick it up code wise? I'm thinking the 2.5 and the 3.0 didn't have the same gear ratios but I don't know. Found one for 380 used and have a guy with a shop that's going to put it in for 200.
derrickmd30
if it's a VDC then it needs to be a VDC transmission from 01-04
if it's a 3.0 then it needs to be from another H6 01-04
correct the 4 and 6 cylinders are not the same gear ratios and they have other significant differences as well.
technically gear ratio doesn't matter - one can get around that by simply swapping in the matching rear differential which is easy and cheap.
swapping 4 and 6 cylinder transmissions hasn't happened yet that i know of, so interchangeability isn't known.
Car-Part.com--Used Auto Parts Market
if it's a 3.0 then it needs to be from another H6 01-04
correct the 4 and 6 cylinders are not the same gear ratios and they have other significant differences as well.
technically gear ratio doesn't matter - one can get around that by simply swapping in the matching rear differential which is easy and cheap.
swapping 4 and 6 cylinder transmissions hasn't happened yet that i know of, so interchangeability isn't known.
Car-Part.com--Used Auto Parts Market
6 cyls have 4.11 FD ratios. 4 cyl automatic outbacks have 4.444, 4 cyl auto legacies are 4.11.
I have a theory that you can run a 6 cyl. Outback trans in a 4 cyl. legacy without any major issues other than having use the H6 hard lines and relocated filter, or maybe take the filter delete plug off the side of the trans and actually put it back there. Great move for the Legacy crowd as you get a lot more friction area in the clutch packs which can only be a good thing.
I would not recommend going the other direction (running a 4 cyl. legacy trans in a 6 cyl. non VDC outback).
04 MY transmissions are a little different in the way the transfer clutch is controlled, so if you cross that threshold you'll need to swap the transfer clutch solenoid and valve body. Doesn't matter if 4 or 6 cyl, they all changed in that year. . . so if you find an 04 trans and you want to put it in an 01-03, you've gotta swap that valve.
I have a theory that you can run a 6 cyl. Outback trans in a 4 cyl. legacy without any major issues other than having use the H6 hard lines and relocated filter, or maybe take the filter delete plug off the side of the trans and actually put it back there. Great move for the Legacy crowd as you get a lot more friction area in the clutch packs which can only be a good thing.
I would not recommend going the other direction (running a 4 cyl. legacy trans in a 6 cyl. non VDC outback).
04 MY transmissions are a little different in the way the transfer clutch is controlled, so if you cross that threshold you'll need to swap the transfer clutch solenoid and valve body. Doesn't matter if 4 or 6 cyl, they all changed in that year. . . so if you find an 04 trans and you want to put it in an 01-03, you've gotta swap that valve.
Will an 04 trans fit my 01??? (Both are Outback LLBeans w/H6) - 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX - Ultimate Subaru Message Board
says that's a '04 H6 LL bean trans.
If all that is accurate and you are non-VDC any 01-04 H6 non-VDC trans will work, but if yours is an '04 and the trans is from 01-03 you need to swap a few parts in the tail housing from your old trans.
I have a pic of my donor '04 trans is code is TZ1A4ZMFAA-M7. (90% sure that's the donor not the orig)
My trans ID from the plate on my '03 is TZ1A4ZMEAA
says that's a '04 H6 LL bean trans.
If all that is accurate and you are non-VDC any 01-04 H6 non-VDC trans will work, but if yours is an '04 and the trans is from 01-03 you need to swap a few parts in the tail housing from your old trans.
I have a pic of my donor '04 trans is code is TZ1A4ZMFAA-M7. (90% sure that's the donor not the orig)
My trans ID from the plate on my '03 is TZ1A4ZMEAA
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