Gt tranny in my imprezza?

[Blackbeard]

Hi guys,

I've got a 02 imprezza ts and I have a 03 legacy gt tranny ( both trannys are manuals) can I use the gt tranny? Are the rear end ratios the same?

Also are the clutches the same push vs pull.

Any insight would be helpful as my 4 th gear is shot!????

Thanks!

[matt167]

Ratios might be different, but I think the GT and RS use the Same 3.90 ratio as the Impreza, but either or might also be 4.11

 

A call to Subaru with trans codes might clear it up

[AdventureSubaru]

Google the trans codes as the GTs were not always consistent to my knowledge. There's a chart out there to look it all up if you do a search or two on here, it should turn up.

 

They will have the same style clutch.

[Blackbeard]

Thanks bud,

Did call they have diff codes but I've also got a couple of subie techs that swear it will bolt right in and the rears are the same agh!

[AdventureSubaru]

Here's the chart.

 

http://www.northursalia.com/techdocs/trannychart/trannychart.pdf

[Blackbeard]

Thanks that's huge!

I'll check it out and I'll let you all know the end result!

[wtdash]

Looks like you'll need to swap the rear diff and they both should be PUSH style, as are all Subie NON-turbo* clutches -both cable and hydro - hydraulic. * some turbo'd Subies are Push; some are Pull.

 

 

 Just look. If the clutch slave is mounted behind the fork, you have a pull-type. If it's mounted in front of the fork, you have a push-type. Another way to tell is to look around the fork. If there is a cap with a spot for an allen wrench, it's a pull-type. Otherwise, it's a push type, e.g. 

In general, If the slave pushes towards the firewall, it's a push type. If it pushes away, it's a pull type. 

 

opposedforces.com\parts....>>>model>>drill down to the parts section>>Train>>Diff (trans) and look under Gear Set-hypoid: '02 TS = 3.9 ; '03 GT = 4.11

 

Matches the Tranny Chart linked by 'AdSub'

 

The trans code (on the bell housing - TY********) MAY tell you - if you can find a 'decoder', but not sure.

Edited April 16, 2016 by wtdash

[Blackbeard]

Thanks !

Great now I have to find a rear diff!????

Oh well gotta love the simplicity!

Thanks again

[johnceggleston]

the GT rear is a 4.11 ratio.

and was /is a vlsd, locking diff.

 

so a rear diff from an outback or GT, 01 - 03, H4, manual trans will match and be locking.

a forester manual trans will match the raio, i do not know if it is locking.

 

but the rear diff from an impreza (not wrx) auto trans or lego L, brighton, or LS auto trans 00 - 03 will also work, just not locking.

for that matter, any rear diff from and auto trans car lego 95 - 99 with ej22 engine,

or any 93 - 97  auto trans impreza with ej22 or ej18.

 

lots to pick from.

 

check out www.car-part.com

sort by zip code, shipping will be expensive.

Edited April 16, 2016 by johnceggleston

[wtdash]

^....be aware that the BOLT pattern on the pinion flange (front for rear diff) changed around '95 - Legacy for sure, probably on Imprezas too- , so the drive shaft / line won't bolt up properly.