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What size is the axle nut on a 2010 Chevy Cobalt?

The axle nut that secures the outer CV joint to the wheel hub on a 2010 Chevrolet Cobalt is typically 32 millimeters in diameter. In most stock configurations, a 32 mm socket fits the nut, but some variants or aftermarket axles may use a larger size, up to 34–36 mm. Always verify the exact size on your vehicle before attempting any removal or replacement.


The precise size can vary depending on the specific axle and hub assembly used on your Cobalt, as well as any aftermarket parts that may have been installed. Because the Cobalt is front-wheel drive, you’ll generally be dealing with the front axle nut; the rear axle setup, if present on a particular model or modification, can use a different size. To avoid damaging the nut or your tools, confirm the exact measurement for your VIN and build date through official manuals or by inspecting the nut on the vehicle itself.


Confirming the correct size for your vehicle


Use these methods to determine the exact axle nut size for your specific 2010 Cobalt before buying sockets or attempting removal.



  • Consult the owner’s manual or a GM service manual (Haynes/Chilton) for the exact axle nut specification for your trim and engine code.

  • Inspect the nut head directly; some nuts have the size stamped or etched on the outer surface or on the packaging if it is a replacement.

  • Measure across the flats of the nut with calipers or a precise ruler and compare against common socket sizes (32 mm, 34 mm, 36 mm) to find the correct fit.

  • Bring the old nut or the wheel hub assembly to an auto parts store to match the size with a replacement nut or socket set.


Once you identify the correct size, use the appropriate tool carefully. For safety, ensure the vehicle is securely supported and the wheel is chocked before attempting any work on the axle nut.


Why the size can vary


Even within the same model year, variations in manufacturing, aftermarket CV axles, or previous repairs can lead to different axle nut sizes. Always verify against your specific vehicle and parts history rather than relying solely on a generic year model.


Common sizes to expect on GM front axles


Knowing which sizes you might encounter helps you plan ahead if you’re ordering parts or organizing tools, especially when dealing with used or replaced components across GM’s front-drive lineup.



  • 32 mm: The most common size for stock 2010 Cobalt front axle nuts.

  • 34 mm: Possible on some aftermarket or swapped axles; less common on stock factory assemblies.

  • 36 mm: Rare, but can appear on certain GM models or non-standard replacements.


Because the exact size depends on the specific axle and hub assembly, always verify on your vehicle rather than relying solely on memory or general guidance.


What to do if you can’t confirm the size right away


If you don’t have easy access to manuals or the vehicle isn’t easily accessible for a direct measurement, use a cautious, step-by-step approach to avoid damage:



  • Visually compare the nut with known socket sizes (32, 34, 36 mm) by attempting to fit sockets without forcing them onto the nut.

  • Take a photo of the nut and consult an automotive parts professional or GM dealer for a precise identification based on your VIN and engine code.

  • When in doubt, replace the nut with an OEM-spec part that matches the exact size confirmed for your car to ensure proper torque and fitment.


Accurate identification protects both the wheel hub assembly and the CV joint from improper torque or mechanical damage during maintenance.


Summary


For the 2010 Chevy Cobalt, the typical axle nut size is 32 mm, though some variants or aftermarket parts may use 34–36 mm. To ensure you use the correct socket, consult the vehicle’s manuals, inspect the nut, or measure directly on the nut and verify against a reliable parts source. When in doubt, verify with a dealer or a qualified technician to prevent tool or component damage and ensure safe, proper installation.

What size socket for axle nut?


The size of the socket for an axle nut varies by vehicle, but common sizes are 30mm, 32mm, 35mm, and 36mm. It is essential to check your vehicle's specific manual for the correct size, as it can differ between models and may have been changed if the axle has been replaced. 

  • Common metric sizes: 30mm, 32mm, 33mm, 34mm, 35mm, and 36mm are frequently used, says JustAnswer, Reddit users, Parts Avatar, and Home Depot. 
  • How to be sure: The most reliable method is to consult your car's owner's manual or a repair manual specific to your make and model to confirm the correct size and torque specifications. 
  • Socket material: For high torque applications, such as loosening or tightening the axle nut, use a strong, impact-rated socket made from materials like chrome-molybdenum steel to avoid damage to the socket or the nut. 



What size are the wheel nuts on a Chevy Cobalt?


The lug nut size for a Chevy Cobalt is M12x1.5, which means a 12mm thread diameter with a 1.5mm pitch. The correct lug nuts will also have a 60-degree conical seat and a 3/4 inch hex size, though a 13/16 inch socket is also commonly used for tightening.
 

  • Thread Size: M12x1.5 (12mm x 1.5mm)
  • Seat Style: 60-degree conical seat
  • Hex Size: 3/4 inch or 13/16 inch



What is the torque on the axle nut on a 2010 Chevy Cobalt?


L4 2.2L cid:134 cc:2198. 4-Wheel ABS. 5 stud. Axle nut torque: 155 ft-lb (210 Nm).



What size is the axle nut on a 2007 Chevy Cobalt?


The 2007 Chevy Cobalt axle nut has a 30mm hex size and an M20x1.5 thread size. You will need a 30mm socket to remove and install it. 

  • Hex Size: 30mm
  • Thread Size: M20x1.5
  • Socket Size: 30mm


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.