MY98 version 4 Type R rear diff

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26 June 2009, 11:12 PM

Imran21

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MY98 version 4 Type R rear diff

Hi All,

Can anyone tell me/confirm what rear diff should be on a version 4 STI type R. Is there a code or something for it?

Thanks
Imran

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26 June 2009, 11:15 PM

TonyBurns

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It should have an R180 rear diff, just dont ask me where the code is as i dont know

Tony

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26 June 2009, 11:40 PM

dazdavies

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It's an R180 with a 4.444 ratio.

R180 diffs have thicker drive shafts. Another tell tale sign is the distance between the two bolts that mount it to the rear diff. Should be roughly 180mm apart which is pure coincedence.

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27 June 2009, 09:11 AM

Imran21

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Thanks fellas!

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27 June 2009, 09:16 AM

Imran21

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Thanks fellas!
@ Dazdavies - what is it that mounts onto the rear diff that has bolts 180mm apart?
Cheers!

And does a version 3 STI (non DCCD) have a R180 diff as well?

Last edited by Imran21; 27 June 2009 at 09:24 AM.

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27 June 2009, 11:27 PM

dazdavies

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Quote:

Originally Posted by Imran21

Thanks fellas!
@ Dazdavies - what is it that mounts onto the rear diff that has bolts 180mm apart?
Cheers!

And does a version 3 STI (non DCCD) have a R180 diff as well?

Sorry mate I missed some essential info out there. If you at at your diff from the rear of the car the back of the diff has two bolts that attach the diff to the rear cross member. It's these that are 180mm apart.

Non DCCD's have the smaller R160 Diff and are of a 3.9 ratio.

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