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2007+ Expedition & Navigator 2007, 2008, 2009 and 2010 Ford Expedition and Lincoln Navigator

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Old 04-30-2012, 09:11 PM
dgruhlke dgruhlke is offline
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2007 Expy Rear Differential Friction Modifier?

Hello-
I just changed the rear differential fluid in my 2007 Expedition. From what I can tell the 2007s and newer do NOT have limited slip differentials, they have traction control. When the truck is jacked up and I spin a tire one way, the opposite tire spins the other way. Per the manual, the friction modifier is only needed on models with the limited slip. This is a bit confusing since it's not offered I don't know why they put that in the manual... but my question is am I right about this that I don't need the friction modifier?

Thanks!
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Old 04-30-2012, 09:35 PM
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Should not be needed.
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Old 05-01-2012, 10:23 AM
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Whats the manual say? If it says add it I would.
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Old 05-01-2012, 11:22 AM
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No LS in the 07+ Expy

Just put the spec'd dif fluid. No modifier needed
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Old 05-01-2012, 11:22 AM
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06, 2007, change, diff, differential, diiferential, expedition, f150, fluid, ford, friction, modifier, modifyer, rear, slip

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