SUBARU3 Posted October 3, 2014 Share Posted October 3, 2014 Hey guys: Trying to figure out if a Impreza transmission will swap to a Legacy. Donor: 1993 Impreza AUTOMATIC / Front wheel drive only / 1.8 EJ18 To: 1991 Legacy AUTOMATIC / Front wheel drive only / 2.2 EJ22 Are the flywheel covers the same on the EJ18 as the EJ22 in this year vintage? Would the electrical connectors be the same? Thanks for your thoughts. Todd Quote Link to comment Share on other sites More sharing options...
AdventureSubaru Posted October 4, 2014 Share Posted October 4, 2014 It will all be the same. Just make sure your final drive ratio is a match. Quote Link to comment Share on other sites More sharing options...
SUBARU3 Posted October 4, 2014 Author Share Posted October 4, 2014 With it being 2WD I would think any final drive would be OK, as it doe not have to match the rear diff. But wiring should be ok? Quote Link to comment Share on other sites More sharing options...
AdventureSubaru Posted October 4, 2014 Share Posted October 4, 2014 Ha! Missed that. Then yeah, everything should be identical. Throw it in there and drive. Quote Link to comment Share on other sites More sharing options...
MilesFox Posted October 4, 2014 Share Posted October 4, 2014 There may be 23 splines on the impreza axle and 25 on the legacy. You would have to swap axles if so. Otherwise it should be a direct bolt in. FWDFTMPG Quote Link to comment Share on other sites More sharing options...
86BRATMAN Posted October 4, 2014 Share Posted October 4, 2014 My memory may be incorrect, but I think it's only the fwd 5mt impreza that has 23 spline axles. All the phase 1 tranys have the same electrical connections that I've seen. You should be good to go. Quote Link to comment Share on other sites More sharing options...
SUBARU3 Posted October 4, 2014 Author Share Posted October 4, 2014 Yes, I ran into the spline issue with my 5 speed. Thanks guys!! Much appreciated. Todd Quote Link to comment Share on other sites More sharing options...
SUBARU3 Posted October 4, 2014 Author Share Posted October 4, 2014 The ej18 and the ej22 have the same rear engine cover..... right?? Quote Link to comment Share on other sites More sharing options...
86BRATMAN Posted October 4, 2014 Share Posted October 4, 2014 I have no experience with the ej18 as far as the flex plate goes. If it doesn't you can use the torque converter from the ej18 trans on the ej22 trans. Quote Link to comment Share on other sites More sharing options...
idosubaru Posted October 5, 2014 Share Posted October 5, 2014 engine and trans will bolt up just fine the EJ18 intake manifold/TPS sensor (which the transmission uses info from) are way different than the EJ22 electronically. i'm not sure if that matters...i'd guess it doesn't matter - but clarify that... instead of swapping the torque converter - you can also swap the flexplate. i've got an EJ25 flexplate on my EJ18 - so you can definitely bolt your EJ18 flexplate to your Ej22. i'd guess the torque converters are interchangeable, but just a guess. someone recently saw different torque converters (i'm wondering if it was me on my 03 AT frankentrans this summer?). Quote Link to comment Share on other sites More sharing options...
SUBARU3 Posted October 5, 2014 Author Share Posted October 5, 2014 Thanks everybody!!! Much appreciated. Todd Quote Link to comment Share on other sites More sharing options...
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