4WD Front differential

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01-21-2004, 04:47 PM

temp1

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4WD Front differential

I have a 1999 4WD F150 Lariat Flareside pickup. I put friction modifier in the rear differential.

Do I also need to put friction modifer in the front differential?

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01-22-2004, 10:36 AM

Ignerence

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Not unless you have put in a traction device that requires it. So most likely No. just 2L of any good 75w90 will do.

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