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Decoding 2006 E450 Axle Code

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Old Jun 29, 2019 | 03:10 AM
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Paul Lesslie's Avatar
Paul Lesslie
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Decoding 2006 E450 Axle Code

I have a 2006 e450 with a tioga Class C motorhome. The door tag list the axle as 83. My searches indicate a 83 is 4.30. But the tag on the differential case is 4.56 6c24 bb 2002713-3. I'm trying to determine how to match this info with the application data shown in the Owners Manual which lists several such as M70HD (M273HD). I trying to determine if it is a conventional axle or a Limited slip one, if it already has 75W-140 fluid installed. My goal is to ensure it has the 70W-140 fluid as I'll be going on a 7,000 mile trek around the USA pulling a trailer. If I need to drain and fill I want to ensure I use the correct fluids and/or additives. Thanks
 

Last edited by Paul Lesslie; Jun 29, 2019 at 03:13 AM. Reason: added clarity
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Old Sep 15, 2023 | 08:06 PM
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Did anyone ever answer your question ?

Originally Posted by Paul Lesslie
I have a 2006 e450 with a tioga Class C motorhome. The door tag list the axle as 83. My searches indicate a 83 is 4.30. But the tag on the differential case is 4.56 6c24 bb 2002713-3. I'm trying to determine how to match this info with the application data shown in the Owners Manual which lists several such as M70HD (M273HD). I trying to determine if it is a conventional axle or a Limited slip one, if it already has 75W-140 fluid installed. My goal is to ensure it has the 70W-140 fluid as I'll be going on a 7,000 mile trek around the USA pulling a trailer. If I need to drain and fill I want to ensure I use the correct fluids and/or additives. Thanks
I have the exact same tag on the rear axle of my 2006 Fleetwood Jamboree. I have used the 90w-140 synthetic fluid for about 4 years now without any problem. I'm not aware of any limited slip differentials being offered.
Not trying to resurrect an old thread here, though I've been on FTE since the beginning. Just wondering if anyone responded ?
 
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