What does an H9 Ford axle code mean?

The sticker in my truck door has an H9 Ford axle code listed. Can you tell me what that means?

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Answer provided by
Heather Bernhard
Answered on Apr 14, 2022
Sure thing! I’d be happy to help you out with your H9 Ford axle code!
That sticker on your truck’s doorjamb offers great information about your vehicle, including the VIN and barcode, the trim package, and the axle differential and ratio. An H9 Ford axle code means your truck has a limited-slip differential with a 3.55 ratio.
According to the manufacturer, you should change your differential oil every 30,000 to 50,000 miles. Low differential oil can weaken the gears and lead to failure, so it’s important to stay on top of your routine maintenance.
While you’re at it, it’s also wise to review your auto insurance once a year to ensure you still have the best coverages and rates. Have you checked your policy lately?
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