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WRX diff on my EA82?


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9 replies to this topic

#1 ABawm 88 GL

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Posted 26 July 2012 - 04:11 PM

I converted my EA82 88 GL to RWD a couple months ago and its been running great, Like drifting everwhere everyday great, but yesterday the rear 3.9 open Diff gave up :( I want to replace it with an lsd, but my friend has an 05 WRX diff and without much knowledge on this at all. Is it possible to move the splines from MY diff to HIS diff so that my cv axles can slide onto it?

#2 GeneralDisorder

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Posted 26 July 2012 - 04:28 PM

You will need to use inner axle joints from a '95+ on EA82 shaft/outer joint assemblies to interface it.

GD

#3 ABawm 88 GL

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Posted 26 July 2012 - 05:51 PM

Are there any instructions on how to do this?

#4 GeneralDisorder

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Posted 26 July 2012 - 07:36 PM

No, not really. You just swap the joint cup. It's not rocket science. It's a CV boot and a snap ring.

GD

#5 suberdave

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Posted 26 July 2012 - 08:43 PM

if you need some shafts that will make this work. just let me know. i can sale you just the parts that you need, or i can make you some shafts that will be plug and play.

-=Suberdave=-

#6 obk25xt

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Posted 26 July 2012 - 08:51 PM

Is there any advantage to going this way? Or is it just to use the WRX diff? I could see that possibly it would be a smoother transfer of power only because of less surface to surface interface.....

Please explain/enlighten me.....

Spencer

#7 GeneralDisorder

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Posted 26 July 2012 - 09:04 PM

Not really much difference. I think they went to axle splines on the inside of the diff to avoid having the splines rust from being exposed.

It's just to use the WRX diff which requires the "male" axle joint vs. the female roll-pinned version.

GD

#8 carfreak85

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Posted 29 July 2012 - 11:42 AM

WRX rear diff ratio will not match the front diff's ratio if you go back to stock, IIRC it is 3.54 vs 3.90.

#9 ABawm 88 GL

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Posted 30 July 2012 - 02:36 PM

I'm RWD so it really doesn't matter considering I don't have front CV axles? Right? At this point I just don't know how to transfer the Female axle joint to the Male WRX one on the CV axles, I've looked into it and the only way seemingly possible is to break it off, and I'm not really trying haha

#10 suberdave

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Posted 31 July 2012 - 08:05 AM

if you have both the EA82 rear shafts and WRX shafts, its not all that hard.

if you dont have all the parts, i have axle parts coming out my ears.

i can help you. or do it for you. shoot me a PM...

-=Suberdave=-

if you need some shafts that will make this work. just let me know. i can sale you just the parts that you need, or i can make you some shafts that will be plug and play.

-=Suberdave=-






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