02 WRX 4EAT rear LSD swapped into a 02 Impreza OS 4EAT?

Subpar · 07-25-2008, 06:47 PM

Same gear ratios from what I've read, but is there a DIFFerence in the housing?

I have searched Nasioc, but nothing came up.

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DS1 · 07-26-2008, 01:23 PM

Different trans completely.

Turbo 4eat's use different internals and valvebodies.

Also the WRX 4eat has the variable center diff the the obs doesn't.

You need to find a non-turbo trans

-Dylan @ DS1

Subpar · 07-26-2008, 04:42 PM

Hmmm, I don't think I'm explaining myself clearly.

I have an 02 Impreza Outback Sport (4EAT). The rear diff is bad. Will the rear LSD from an 02 WRX (4EAT) bolt directly in, or will I need to modify anything?

I don't want to swap the transmission, just the rear diff.

I don't have much knowledge of newer Subarus, I'm used to working on beat GL junkbuckets.

DS1 · 07-26-2008, 06:21 PM

Oops, the rear diff will bolt in but you will need a set of LSD axles

Subpar · 07-28-2008, 11:57 AM

Crap. Different spline count? I'm guessing maybe I should just buy a complete rear end - diff/axles/hubs/disc brakes. It would be nice to have rear discs...

DS1 · 07-28-2008, 01:39 PM

Different stub into the diff, the rear conversion would be a good idea.

Subpar · 08-04-2008, 01:28 PM

Can anyone confirm that 02 WRX wagon rear axles are different from 02 WRX sedan rear axles? Part numbers and/or photos would be helpful.

DS1 · 08-04-2008, 02:46 PM

10mm narrower for the wagon than the sedan.

AndrewtechAutomotive · 08-04-2008, 02:56 PM

Confirmed. The WRX wagon axles are 1cm narrower than the sedan axles.

Phil

Subpar · 08-04-2008, 03:10 PM

Thanks for the info, much appreciated. Now I can stop asking questions and start working on getting my car back on the road.

07-25-2008, 06:47 PM	#1
Subpar Scooby Newbie Member#: 178953 Join Date: May 2008 Chapter/Region: NWIC Location: Portland, OR Vehicle: 2002 Impreza OS	02 WRX 4EAT rear LSD swapped into a 02 Impreza OS 4EAT? Same gear ratios from what I've read, but is there a DIFFerence in the housing? I have searched Nasioc, but nothing came up. * Registered users of the site do not see these ads.

07-26-2008, 04:42 PM	#3
Subpar Scooby Newbie Member#: 178953 Join Date: May 2008 Chapter/Region: NWIC Location: Portland, OR Vehicle: 2002 Impreza OS	Hmmm, I don't think I'm explaining myself clearly. I have an 02 Impreza Outback Sport (4EAT). The rear diff is bad. Will the rear LSD from an 02 WRX (4EAT) bolt directly in, or will I need to modify anything? I don't want to swap the transmission, just the rear diff. I don't have much knowledge of newer Subarus, I'm used to working on beat GL junkbuckets. Last edited by Subpar; 07-26-2008 at 04:53 PM. Reason: Ms. Spelling

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07-26-2008, 01:23 PM	#2
DS1 Vendor Member#: 111780 Join Date: Apr 2006 Chapter/Region: MWSOC Location: Schaumburg, IL	Different trans completely. Turbo 4eat's use different internals and valvebodies. Also the WRX 4eat has the variable center diff the the obs doesn't. You need to find a non-turbo trans -Dylan @ DS1

07-26-2008, 06:21 PM	#4
DS1 Vendor Member#: 111780 Join Date: Apr 2006 Chapter/Region: MWSOC Location: Schaumburg, IL	Oops, the rear diff will bolt in but you will need a set of LSD axles

07-28-2008, 11:57 AM	#5
Subpar Scooby Newbie Member#: 178953 Join Date: May 2008 Chapter/Region: NWIC Location: Portland, OR Vehicle: 2002 Impreza OS	Crap. Different spline count? I'm guessing maybe I should just buy a complete rear end - diff/axles/hubs/disc brakes. It would be nice to have rear discs...

07-28-2008, 01:39 PM	#6
DS1 Vendor Member#: 111780 Join Date: Apr 2006 Chapter/Region: MWSOC Location: Schaumburg, IL	Different stub into the diff, the rear conversion would be a good idea.

08-04-2008, 01:28 PM	#7
Subpar Scooby Newbie Member#: 178953 Join Date: May 2008 Chapter/Region: NWIC Location: Portland, OR Vehicle: 2002 Impreza OS	Can anyone confirm that 02 WRX wagon rear axles are different from 02 WRX sedan rear axles? Part numbers and/or photos would be helpful.

08-04-2008, 02:46 PM	#8
DS1 Vendor Member#: 111780 Join Date: Apr 2006 Chapter/Region: MWSOC Location: Schaumburg, IL	10mm narrower for the wagon than the sedan.

08-04-2008, 02:56 PM	#9
AndrewtechAutomotive Former Vendor Member#: 99694 Join Date: Nov 2005 Chapter/Region: MAIC Location: 09 SS GTR Vehicle: 2015 rocketbunny brz red	Confirmed. The WRX wagon axles are 1cm narrower than the sedan axles. Phil

08-04-2008, 03:10 PM	#10
Subpar Scooby Newbie Member#: 178953 Join Date: May 2008 Chapter/Region: NWIC Location: Portland, OR Vehicle: 2002 Impreza OS	Thanks for the info, much appreciated. Now I can stop asking questions and start working on getting my car back on the road.