PowerStrokeNation : Ford Powerstroke Diesel Forum - View Single Post - friction modifier in differential?
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post #5 of (permalink) Old 01-09-2011, 04:39 PM
SINNER
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Join Date: Jul 2007
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Re: friction modifier in differential?

Even Amsoil says try without it and if you have chattering to add it then. For what it's worth I have never had to add any to any of my newer trucks (04 up) but I have a few vans with the LS that will rattle your teeth without it. Seems to be a case by case basis.

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Originally Posted by Coltaine View Post
It feels like someone just had forced buttsecks with my eyes.

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