2007 F650 Axle Code Info 3M

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Aug 12, 2021 | 03:34 PM

atrovtech

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2007 F650 Axle Code Info 3M

I've got a few of these trucks, and so far I've been able to figure out it's the Cummins 5.9, 200 hp. with the Fuller FS-5205A transmission, but I haven't been able to find anything on the axle code "3M". The vin is 3FRWW65A37V488717, I've attached a picture of the door tag. Particularly in need of the ratio. Any help is much appreciated.

Aug 12, 2021 | 03:53 PM

85e150

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Click on your VIN above. It goes to the VIN decoder here and comes up with:

17500lb Spicer 17060S single reduction single-speed rear axle w/190 wheel ends

as well as all the rest of the info.

Let us know if it matches or if it's off in some way.

Aug 13, 2021 | 07:00 AM

atrovtech

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I did see that on there, however it didn't list the ratio, it just gave basically all of them 😅

The ratio is ultimately what I'm after.

Last edited by atrovtech; Aug 13, 2021 at 10:09 AM.

Aug 13, 2021 | 04:52 PM

85e150

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Scroll down to page 5 where they show the locations of the tags on the axle, and where the ratio info is stamped.

http://media.spicerparts.com/cfs/fil...aLD9EpM7Qu/AXS

The other way is if you have a tach and speedo that work, and have a 1:1 gear (just makes it easier) and the loaded radius of your tire.

Drive it to an even number RPM, note the speed and apply to a calculator.