Transmission lube

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05-26-2016, 05:48 PM

PeteBug

Diesel Fan

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Transmission lube

I am rebuilding my 99 dodge nv4500 5 speed manual transmission. What is the best/correct oil to use. 99 Dodge Ram 3500 4 X 4 with 5.9 diesel

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05-31-2016, 04:45 AM

gh0stman

Diesel Wrench

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SAE 50 wt Mobil Delvac is what I used. It is rated correctly for our transmissions. The OEM fluid is no longer produced. I can tell you that since swapping this fluid in mine that the transmission shifts smoother and get up to operating temps quicker.

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