What size socket for CV axle?

There isn’t a universal answer—the correct socket size depends on your vehicle’s specific axle nut. In practice, most CV axle nuts require a 30–36 mm socket, with 32 mm and 36 mm being among the most common. Always verify the size for your model before attempting removal or installation.

Understanding why the size varies

The axle nut is designed to secure the CV axle to the hub, and manufacturers choose different sizes based on design, vehicle weight, and hub configuration. Because there is no single standard, the size you need can differ even between models from the same manufacturer.

Common CV axle nut socket sizes

Before listing sizes, note that some cars use standard hex sockets, while others use a 12-point design. The following sizes are what you’re most likely to encounter on a wide range of vehicles.

• 30 mm


• 32 mm


• 34 mm


• 36 mm


• Some models use a 12-point version of a 32 mm or 36 mm nut

With this range in mind, you should confirm the exact size for your specific vehicle by checking the owner’s or service manual, inspecting the nut for any stamped size, or trying the socket closest to the expected size.

How to determine the exact size for your car

Because every model can differ, use a methodical approach to identify the correct socket size without forcing a fit.

1. Check the vehicle’s owner’s manual or service manual for the specified axle nut size and torque.


2. Look at the nut itself for any size markings or stamping that indicate the size.


3. If you don’t see markings, measure across two opposite flats of the nut with a caliper or ruler and compare to common sizes (30, 32, 34, 36 mm).


4. Try sockets starting with the most likely size (e.g., 32 mm or 36 mm) using a 6-point socket first; if it doesn’t fit snugly, don’t force it—try another size or verify with the manual.


5. When replacing the axle, ensure you use the correct nut specified for your vehicle and replace it with the same type (hex vs. 12-point) as required.

Always use the correct type of socket (6-point or 12-point as required), and confirm the torque specification from the manufacturer once you’ve installed the nut.

Practical tips for safety and accuracy

Working on CV axles involves removing wheel, hub, and sometimes suspension components, so proceed with proper safety precautions. Use a torque wrench to tighten the axle nut to the manufacturer’s specification after installation, and periodically recheck torque after a few miles of driving as a precaution.

Summary

In short, there is no one-size-fits-all socket for CV axle nuts. Expect to encounter sizes around 30–36 mm, with 32 mm and 36 mm being the most common. Always verify the exact size for your vehicle via the owner’s or service manual, markings on the nut, or by careful measurement. Using the correct socket and following the manufacturer’s torque specifications will help ensure a safe and reliable installation.

What tools do you need for a CV axle replacement?

Tools and Equipment Needed to Replace a CV Axle

• Breaker bar.
• Dead-blow hammer.
• Drain pan.
• Jack and jack stands.
• Large hammer or mallet.
• Long-handled diagonal cutting pliers.
• Pry bar or CV axle puller.
• Ratchet and socket set.

What size socket is the axle nut?

The axle nut socket size varies by vehicle, but common metric sizes are 30mm, 32mm, 33mm, 35mm, and 36mm. The best way to ensure you have the correct size is to consult your vehicle's service manual, as some manufacturers use uncommon sizes or a 1-11/16-inch socket. 
Common axle nut socket sizes

• 30mm
• 32mm
• 33mm
• 35mm
• 36mm
• 1-11/16 inch: (equivalent to 30mm) 

How to find the correct size

• Check your vehicle's manual: This is the most reliable method for getting the exact size for your specific make and model. 
• Measure the nut: You can also measure the nut directly or use a socket set to find the correct fit. 
• Consider aftermarket parts: If the axle has been replaced, the nut size may differ from the original equipment manufacturer (OEM) specifications, so it's best to check. 

What size socket do you need for a CV axle?

The common CV axle socket sizes are 32mm and 36mm, but it can vary by vehicle and range from 27mm to 38mm. The best way to ensure you have the correct size is to check your vehicle's service manual or measure the nut, as the size is not universal. You may need a deep socket to fit over the length of the axle shaft. 
Common sizes

• 32mm: A very common size, especially on front-wheel-drive vehicles. 
• 36mm: Another frequently used size. 
• Other common sizes: Depending on the make and model, you may also need a 30mm, 34mm, or 35mm socket. 

How to find the correct size

• Check your service manual: This will provide the exact specification for your vehicle.
• Measure the nut: If you don't have the manual, you can use a caliper to get a precise measurement. 
• Look at the new axle nut: If you are replacing the axle, the new nut may be labeled with the size, or you can take the old nut to an auto parts store to match it. 
• Borrow a set: Many auto parts stores offer a free tool rental program where you can borrow a socket set to use while you work. 

Additional considerations

• Use a deep socket: Axle nuts are located at the end of a long shaft, so a deep socket is often necessary to fit properly. 
• Consider a 12-point socket: Some axle nuts require a 12-point socket, particularly on European and Japanese cars, so it's best to have a set that includes them. 
• Use a breaker bar: Axle nuts are often torqued on very tightly, so you may need a long breaker bar for extra leverage to loosen it. 

What size nut is on a CV axle?

The size of a CV axle nut varies, but common sizes are 32mm or 36mm, depending on the vehicle. To be certain, it's best to either measure the nut directly with calipers or consult your vehicle's service manual, as the size can differ for aftermarket parts or different car models.
 

• Most common sizes: 32mm and 36mm are frequently used. 
• Other possible sizes: 30mm and 34mm are also common, especially for aftermarket parts. 
• How to be sure: Measure the nut with a caliper or check your car's service manual for the exact size. 
• Why it's important: Using the wrong size socket can strip the nut and damage the axle, leading to costly repairs. 
• Don't forget: When reinstalling, torque the nut to the manufacturer's specification using a calibrated torque wrench.