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Where do I find my GM axle code?

If you own a General Motors (GM) vehicle, the axle code is an important piece of information that can help you identify the specific type of axle installed in your car or truck. This code is typically located on a sticker or tag inside the driver's side door jamb, but there are a few other places you can find it as well.


Where to Find the GM Axle Code


The GM axle code is usually found in one of the following locations:



  • Inside the driver's side door jamb - Look for a sticker or tag that lists various vehicle identification numbers, including the axle code.

  • On the rear axle housing - The axle code may be stamped or engraved directly on the rear axle housing.

  • In the owner's manual - Some GM vehicle owner's manuals include the axle code information.

  • On the vehicle's build sheet - If available, the build sheet can provide the axle code details.


The axle code is typically a 2-3 character alphanumeric code that identifies the specific type of axle installed in your GM vehicle. This information can be useful when ordering replacement parts or verifying the correct axle specifications.


Why the GM Axle Code Matters


Knowing the axle code on your GM vehicle is important for a few key reasons:



  • Replacement parts: The axle code helps ensure you order the correct replacement parts, such as differential gears, bearings, or axle shafts.

  • Towing and hauling: The axle code can indicate the vehicle's towing and hauling capacity, which is important information for safely operating your GM truck or SUV.

  • Modifications: If you plan to modify your GM vehicle, the axle code can help you determine the appropriate upgrades or changes that will work with your specific axle type.


By locating the GM axle code on your vehicle, you'll have the information you need to maintain, repair, and customize your car or truck with confidence.

Where is the rpo code located?


These codes are a combination of 3 alphanumeric characters and refer to a specific option or modification to the vehicle. The GM RPO Codes location can be found on a placard labeled “Service Parts Identification” in the glove box, on the trunk floor or inside the driver's door panel.



Where do I find my GM suspension code?


Where can you find a vehicle's RPO codes? It depends on vehicle year, make and model. Some common locations include the glove box, the door jam and the center console.



Where do I find my axle size?


Look for markings. Before trying to measure your axle, look for markings on it. Many times, the dimensions are laser etched on the axle. Your frame or fork manufacturer should also be able to give you the dimensions.



How to identify GM 14 bolt rear end?


Not on the axle shaft those ones you can pull the axles out with the tire still on easiest way to identify semi float versus fuller. Between. The two full floats. You have a 14 T.



How do I find the axle ratio on my Chevy Silverado 1500?


Identify your GMC or Chevrolet rear end gear ratio by the RPO Codes, usually located on the placard labeled “Service Parts Identification” inside the drivers door panel or glove box.



How do I identify my GM front differential?


Information about Differentials in GM vehicles can usually be obtained by looking at the RPO or “Regular Production Option” codes contained in the Service Parts Identification tag in the glovebox or the driver's side door jamb (B-Pillar).



How do I tell what GM axle I have?


On the front of the passenger side axle tube, there will be a code stamped into the axle tube. The first two digits are letters, usually it will start with a W. The first two digits specify the gear ratio that was installed at the factory.



Where would you usually find the axle identification number?


Sprung and Torflex axle labels can be found on the side of the axle facing your rear bumper. The axle label provides critical manufacturing information, including the axle serial number, axle capacity, and axle build information. Locating your axle label will help ensure that you identify your axle correctly.



How do I tell what gear ratio my Chevy Vin has?


You don't. That information is not contained in the VIN, UNLESS a specific model only gets one rear end ratio. VIN tells country of manufacture, vehicle make, class, engine type, size, date of manufacture, plant and serial number. That is the ONLY information contained by the VIN.



How do I find my axle code?


Locate the axle code
1. Locate the Safety Compliance Certification Label on the driver's side, front or rear door panel. 2. Find the word Axle under the bar code.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.