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Rear Diff fluid change

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Old Oct 2, 2006 | 11:20 AM
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freshduckie's Avatar
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Default Rear Diff fluid change

2001 ws6 60,000 miles, I need 4 oz of GM limited Slip Diff. lubercant that I can pick up at GM dealer for $10 bucks---correct? Also is this addivtive fluid I hear about included in the above fluid or is that seperate?

Thanks
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Old Oct 2, 2006 | 03:05 PM
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When I changed mine the fluid I used said LSD additive wasn't necessary and included, but put a bottle in anyway just to be sure. I put the 4oz additive in, then filled it.
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Old Oct 2, 2006 | 03:22 PM
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The additive is for Auburn clutch style diffs.

Some people report that it tends to quiet down noisey torsen gear style diffs (what you should have unless your car is modified), but you shouldn't need it.

Regardless it won't hurt anything so use it if it will make you feel better.
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Old Oct 2, 2006 | 03:56 PM
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I have an Auburn diff in my car, but put it in because even my '01 owners manual said to use it with a complete drain and refill.
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