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Diff Question 01 WS6

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Old Feb 18, 2010 | 08:42 AM
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Default Diff Question 01 WS6

Got a quick question, I have a 2001 WS6 and going to change the diff oil, I got a new gasket and 2 qts of Mobil 1 75w90, Is there any thing else I need?

Thanks JAc
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Old Feb 18, 2010 | 08:57 AM
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Maybe some break clean to spray away the metal shaving junk that is left behind.
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Old Feb 18, 2010 | 08:58 AM
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You're gonna need a tube of Posi-additive.
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Old Feb 18, 2010 | 09:11 AM
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Originally Posted by penningta
Maybe some break clean to spray away the metal shaving junk that is left behind.
Thanks, good idea to clean it out while its open.
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Old Feb 18, 2010 | 09:13 AM
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Originally Posted by rtr2001ss
You're gonna need a tube of Posi-additive.
Is this required for my rear end or something that recommended? Is this the additive that the dealer sells for about 10 dollars?

Last edited by itsjac; Feb 18, 2010 at 09:18 AM.
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Old Feb 18, 2010 | 09:14 AM
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if you dont run the additive the clutches will bind up in the rear. Yeah the cost sounds about right. I used to call it wale sperm. The used to make it out of that hahaha. NO really they did.
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Old Feb 18, 2010 | 12:57 PM
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One more question, what about if I went and bought the valvoline 80
W 90 with the limited slip additive already in the bottle?
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Old Feb 18, 2010 | 01:09 PM
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Originally Posted by itsjac
One more question, what about if I went and bought the valvoline 80
W 90 with the limited slip additive already in the bottle?
You should be fine then.
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Old Feb 18, 2010 | 01:20 PM
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Originally Posted by rtr2001ss
You should be fine then.
Thanks, Trying to save some money, Dealer wanted 12 dollars for just the additive. Picked up 2 qts of the valvoline gear oil for 12 bucks with the LSD additive already in it. and going to rtn the mobil 1.
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Old Feb 18, 2010 | 01:25 PM
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did the 01 have clutchs or a torsen? with the torsen you shouldn't need the additive? I was thinking ( of course that never works out) that all 99 and newer had torsen. Never to old to learn something.

Last edited by cambirdracing; Feb 19, 2010 at 06:03 AM.
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Old Feb 18, 2010 | 01:32 PM
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Originally Posted by cambirdracing
did the 01 have clutchs or a torsen? with the torsen you shouldn't need the additive? I was thinking ( of course that never works out) that all 99 and neser had torsen. Never to old to learn something.
I really dont know what the car has in it. Diff is going to be open for the 1st time. I read 30-40 post of diff on LS1 but some say that the 99 and newer have the torsen and Then I was reading that the WS6 And SS modles have auburn units in them. I just want to make sure I have everything I need nefore I start working on it.

If the Vavoline has LSD addivate already in it, I figured I would be covered either way. and Its alot cheaper than the Mobil 1
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Old Feb 19, 2010 | 02:07 AM
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My 01 TA has a Torsen. No additive needed.
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