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Diff fluid change at 20k

406Linetrash

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Oct 4, 2020
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Looking in manual to do the 20k service over vacation. 6.4 2500Noticed it said change axle fluid if towing. Of my 20k miles. Probably half are pulling. 5k or so with a 12k fifth and the rest just a utv. So not like I'm taxing it.

That seems awfully early. Anyone done it at this mileage? How did the fluid look?
 

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