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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Let's Talk Differentials
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<blockquote data-quote="zemuron99" data-source="post: 1415267" data-attributes="member: 26516"><p>Not really...they say: "our (Torsen) friction properties are different than that of a clutch plate differential," "In a helical gear diff (Torsen), however, the stick-slip tends to show up as an audible noise, described by some as a “rusty screw” noise, or as a squeak or moan. You tend to hear it in very low-speed turns, when the steering is at or near full-lock." "So, the bottom line is it’s up to you.". If you operate in a lot of circumstances where you're hearing noise from the Torsen action, add a few ounces. If you're not hearing noise from the activation of the Torsen system in your front, it won't add any benefit.</p><p></p><p>Ford probably advocates adding it to prevent customer complaints i.e "noisy front diff". It probably comes from the factory that way (with friction modifier added). If you change the front diff oil, it's up to you to add the modifier or not. Beware though, not adding it may give Ford cause to deny warranty claims related to front diff failures...i.e. you didn't maintain according to manufacturer recommendations.</p></blockquote><p></p>
[QUOTE="zemuron99, post: 1415267, member: 26516"] Not really...they say: "our (Torsen) friction properties are different than that of a clutch plate differential," "In a helical gear diff (Torsen), however, the stick-slip tends to show up as an audible noise, described by some as a “rusty screw” noise, or as a squeak or moan. You tend to hear it in very low-speed turns, when the steering is at or near full-lock." "So, the bottom line is it’s up to you.". If you operate in a lot of circumstances where you're hearing noise from the Torsen action, add a few ounces. If you're not hearing noise from the activation of the Torsen system in your front, it won't add any benefit. Ford probably advocates adding it to prevent customer complaints i.e "noisy front diff". It probably comes from the factory that way (with friction modifier added). If you change the front diff oil, it's up to you to add the modifier or not. Beware though, not adding it may give Ford cause to deny warranty claims related to front diff failures...i.e. you didn't maintain according to manufacturer recommendations. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Let's Talk Differentials
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