8.8 Rear Diff Fluid Question

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05-23-2010, 11:43 AM

87Stallion

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Location: ALberta

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8.8 Rear Diff Fluid Question

I had to pull my axles to install longer studs. My question is does synthetic diff fluid already have the friction modifier added? And should I use 75-90 or 75-140?

05-23-2010, 08:01 PM

mjr46

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Join Date: Jun 2007

Location: West Virginia

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75/90, and most do have an additive for limited slip rears, read the back of the bottle, valvoline and Royal purple both do I know

05-24-2010, 02:38 PM

87Stallion

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Thanks mjr

05-24-2010, 07:30 PM

Jfsram

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I still add the limited slip additive.

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