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TowBoss 4L Axle Code?

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Old Dec 12, 2018 | 06:09 PM
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Smile TowBoss 4L Axle Code?

Trying to determine my 5th wheel towing capacity on my F350 dually on the 2006 Vehicle Tow Guide. Called up Ford to find out what options were on my truck since I don't know because I bought it used last year from a used car dealer. They said I had the Tow Command package, but couldn't tell me if I had the TowBoss package. He did tell me that my axle code is 4L (4.30 gear).

I suppose I do have the TowBoss package? My research tells me that 4.30 gears is what is used in that package. A Tow Command could have 4.10 gears. The towing guide says I have 26K GCVWR with the TowBoss package.

Found out I also have the 2.5" receiver hitch as well.
 
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Old Dec 12, 2018 | 11:00 PM
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Pull your build sheet from Ford. It should tell you everything.

https://www.etis.ford.com/
 
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Old Dec 13, 2018 | 08:21 AM
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Look on your door jamb sticker for your axle code.

4L would be a 4.30 limited slip.
 
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