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wrx type RA rear diff

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Old 02 April 2012, 01:33 PM
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luca wrx
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Default wrx type RA rear diff

hi guys, i have some questions...
i have a rear diff taken from wrx type RA 95 (39:10 oem 2 ways LSD)
but the sound of my car is like this....
http://www.youtube.com/watch?v=CD_xM...layer_embedded#!

it's normal?
i think that this noise it's because my diff is broken...
Old 04 April 2012, 12:37 AM
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Baz82
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From experience thats the noise a tight diff makes in a front wheel drive car at slow speeds at full lock. So Id say its normal, are you using the correct oil?
Old 04 April 2012, 11:46 AM
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luca wrx
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Originally Posted by Baz82
From experience thats the noise a tight diff makes in a front wheel drive car at slow speeds at full lock. So Id say its normal, are you using the correct oil?

thank you for your answer!
but which is the correct oil?
i'm using the 75w90....
on Nasioc i see that many use the 85W140...
what do you recommend for my rear LSD 2 ways clutch type?
Old 05 April 2012, 01:01 AM
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Baz82
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Originally Posted by luca wrx
thank you for your answer!
but which is the correct oil?
i'm using the 75w90....
on Nasioc i see that many use the 85W140...
what do you recommend for my rear LSD 2 ways clutch type?
Thats one thing I dont know, you will have to find out the manufacturer of the diff and go from there
Old 05 April 2012, 09:23 PM
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dazer_70
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you have to match the diff with the gearbox....if you are running a standard wrx gearbox the gearing in the diff won't match up.....keep running it that way and it won't be long before it goes bang.....
Old 07 April 2012, 01:14 PM
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luca wrx
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Originally Posted by Baz82
Thats one thing I dont know, you will have to find out the manufacturer of the diff and go from there
i have read that i have to use the motul 90PA oil
i'll try the next days...
Old 07 April 2012, 01:16 PM
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luca wrx
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Originally Posted by dazer_70
you have to match the diff with the gearbox....if you are running a standard wrx gearbox the gearing in the diff won't match up.....keep running it that way and it won't be long before it goes bang.....
dont'worry
i have spec c 6speed gearbox with front 39.10 and rear 39.10
i love this gearbox!
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