Ford Axle Code Chart: Everything You Need to Know

When it comes to owning a Ford vehicle, it’s important that you know what you’re dealing with. One of the key components of your car is its axle, and understanding the Ford axle code chart can help you make informed decisions about your vehicle.

What is an axle code?

An axle code is a series of numbers and letters that indicate the type of axle your Ford vehicle is equipped with. The code is typically found on a sticker or plate located on the inner driver’s side door or on the rear axle itself.

Why is the axle code important?

The axle code is important because it can tell you a lot about your vehicle’s capabilities. For example, it can help you determine the maximum towing capacity of your vehicle, as well as how much weight it can carry.

Ford axle chart: understanding the codes

Ford uses a standard code system for its axles that allows you to easily determine what type of axle you have. Here’s what each of the codes means:

1. The first digit represents the series of the vehicle.
2. The second digit represents the axle ratio.
3. The third and fourth digits represent the production date.
4. The last letter represents the manufacturing plant.

For example, if you see a code that reads “3L73,” this means that the vehicle is part of the F-350 series, has an axle ratio of 3.73, was produced in late November, and was manufactured in the Michigan plant.

Different types of axles

There are several types of axles that you may encounter with your Ford vehicle. Two of the most common types are the Dana 44 and the Ford 9-inch.

The Dana 44 is a heavy-duty axle that is commonly used in off-road applications. It has a higher weight capacity than the Ford 9-inch, making it a good choice for vehicles that will be used for towing or hauling heavy loads.

The Ford 9-inch is a popular choice for hot rods and drag racing vehicles. It is lightweight and durable, making it a good choice for high-performance applications.


Understanding the Ford axle code chart is an important part of owning a Ford vehicle. By knowing what type of axle your car is equipped with, you can make informed decisions about its capabilities and ensure that you’re getting the most out of your vehicle. So take the time to familiarize yourself with the codes, and don’t hesitate to reach out to a professional if you have any questions or concerns.

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