axle oil

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Mar 8, 2007 | 07:50 PM

built54

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Joined: Jul 2006

Posts: 6,282

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From: Farmington, MO

axle oil

I have the 9.75 with factory limited slip. I want to buy the royal purple oil made for limited slip diffs, what weight should i get?

Mar 9, 2007 | 03:37 AM

glc

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Joined: Dec 2006

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From: Joplin MO

75W-140 full synthetic is required along with a bottle of Ford friction modifier.

Mar 28, 2007 | 06:54 PM

dozer76

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Joined: Nov 2006

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I heard that Royal Purple already has a friction modifier.

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