3Pin Posted October 1, 2017 Share Posted October 1, 2017 I was looking at car-part to see which manual trans will fit in my legacy wagon and it shows that a many legacy trans will work from 2001-2003. But it does not list outback or legacy GT models. Is there really a difference? Link to comment Share on other sites More sharing options...
Mike104 Posted October 1, 2017 Share Posted October 1, 2017 (edited) Main issue is final drive ratio. Outbacks have a different final drive ratio. Car-part.com is a reliable source of what fits and what doesn't. As opposed to some random guy on the internet (with some senior member exceptions) Edited October 2, 2017 by Mike104 1 Link to comment Share on other sites More sharing options...
idosubaru Posted October 2, 2017 Share Posted October 2, 2017 If the final drive ratio matches the OB and GT will work Most EJ25s MTs are 4.11 but I recall some 00-04 oddities like a 3.9....maybe, it's been awhile Look up gear ratio charts or search subaru online for ring and pinions or rear diffs to get ratios and compare. Sometimes searching car-part.com for rear diffs will reveal the final drive in some individual listings. Search an OB and regular legacy and compare. Link to comment Share on other sites More sharing options...
Fairtax4me Posted October 2, 2017 Share Posted October 2, 2017 L wagon had 3.90 FDR. Outback and GT models had 4.10 FDR. That's really the only difference. You can use either trans as long as you use the matching ratio rear diff as well. Link to comment Share on other sites More sharing options...
Gloyale Posted October 2, 2017 Share Posted October 2, 2017 L wagon had 3.90 FDR. Outback and GT models had 4.10 FDR. That's really the only difference. You can use either trans as long as you use the matching ratio rear diff as well. this is incorrect. OB and GT manual trans use 4.11, not 4.10 Link to comment Share on other sites More sharing options...
Fairtax4me Posted October 2, 2017 Share Posted October 2, 2017 this is incorrect. OB and GT manual trans use 4.11, not 4.10 Same difference. Link to comment Share on other sites More sharing options...
Gloyale Posted October 2, 2017 Share Posted October 2, 2017 Same difference. actually a difference of .01 Link to comment Share on other sites More sharing options...
3Pin Posted October 2, 2017 Author Share Posted October 2, 2017 Thanks, I am glad to hear this as car-part usually is a pretty good source for compatibility, but i wanted to understand the why. Thanks everyone for their comments. Link to comment Share on other sites More sharing options...
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