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Are all axles the same?

No, not all axles are the same. Axles come in a variety of designs and configurations to meet the specific needs of different vehicles and applications. The type of axle used can vary based on factors such as the vehicle's size, weight, and intended use.


Understanding Axle Diversity


Axles are a critical component of a vehicle's drivetrain, responsible for transmitting power from the engine to the wheels and supporting the weight of the vehicle. While the basic function of an axle is the same across different vehicles, the specific design and construction can vary significantly.


Types of Axles



  • Solid Axles: These are the most common type of axle, found in many trucks, SUVs, and older vehicles. Solid axles are a single, continuous shaft that connects the two wheels on an axle.

  • Independent Suspension Axles: These axles allow each wheel to move independently, providing a smoother ride and better handling. They are commonly used in modern passenger vehicles, such as cars and crossovers.

  • Stub Axles: Stub axles are shorter than solid axles and are used in some vehicles, particularly those with independent suspension, to reduce unsprung weight and improve handling.

  • Live Axles: Live axles are a type of solid axle where the differential is integrated into the axle housing, providing power to both wheels simultaneously.

  • Floating Axles: Floating axles are a variation of the live axle design, where the axle shaft is not rigidly connected to the wheel hubs, allowing the wheels to move independently.


The choice of axle type depends on the vehicle's intended use, weight, and performance requirements. Heavier vehicles, such as trucks and SUVs, often use solid or live axles, while lighter, more agile vehicles, such as cars and crossovers, typically employ independent suspension axles.


Axle Configurations


In addition to the different axle types, vehicles can also have various axle configurations, such as:



  • Front-Wheel Drive (FWD): The engine powers the front wheels, and the rear axle is often a non-driven, independent suspension axle.

  • Rear-Wheel Drive (RWD): The engine powers the rear wheels, and the front axle is often a non-driven, independent suspension axle.

  • All-Wheel Drive (AWD): All four wheels are driven, typically with a transfer case that distributes power to both the front and rear axles.

  • Four-Wheel Drive (4WD): Similar to AWD, but with a transfer case that allows the driver to engage or disengage the four-wheel drive system, often used for off-road applications.


The axle configuration, along with the type of axle, plays a crucial role in a vehicle's handling, traction, and overall performance characteristics.

How do I identify my axle?


Your nine-digit axle serial number is etched into the axle tube near the center on the rear side. PROTIP: If the axle is older, try rubbing a piece of chalk over the number to help bring out the engraving better.



Are axles interchangeable?


The axles do not interchange much with each other. Awd is different on both sides from fwd, auto is different from manual, 1g and 2g do not interchange, abs or non abs. Basically if you have a 2g, fwd, manual trans with abs, you'll need an axle from the same car.



Are all car axles the same?


There are different types of axles: live axles (which deliver power to the wheels) and dead axles (which don't transmit power and are mainly used for supporting weight). In a rear-wheel-drive vehicle, the rear axle is typically a live axle.



Can I have different tires on the same axle?


Mixing tread depth on the same axle could lead to the vehicle pulling or drifting. If you're unable to get matching pairs of tread depth, try to put the closest pair on the front axle. Another important safety recommendation is to have the two best tires installed on the rear of the vehicle.



How do I tell what diff I have?


How to Identify Your Differential and Axle Type

  1. Cover Bolt Count. Since most differentials have a unique cover bolt pattern i.e. 10-bolt, 12-bolt, or 14-bolt, counting them up will narrow the field and help you with identification.
  2. Axle Flotation.
  3. Get Your Spline In Line.
  4. Spec Out Your Hub.
  5. Pinion Size & Ring Gear Diameter.



Is it OK to replace one axle?


Axle weight ratings should be the same on both axles, especially if your axles are torsions. Changing only one trailer axle with a different weight rating from the other puts at risk a load carrying differently or how each axle takes the load, affecting your tire and tongue wear.



How do I tell if I have a Dana 44 or 60 front axle?


Measure Your Axle
The Dana 44 differential cover will measure about 9 1/2 inches wide and 10 1/2 inches tall, while the Dana 60 differential cover will measure about 11 1/4 inches wide and 12 inches tall.



How much is an axle replacement?


Total Cost of CV Axle Replacement
Replacing a single axle, parts, and labor together can cost between $300 and over $1500, depending on the car. This rate can be multiplied by the number of axles you need to replace.



Are there different types of axles?


They support the weight of the vehicle. Not only that, but they connect the wheels to the vehicle and also rotate the wheels to move the car. Also, axles come in three main categories, front axles, rear axles and stub axles. There are also live axles and dead axles.



Are front and rear thru axles the same?


At the front, road bike thru-axles are now pretty much standardised at 100mm long by 12mm wide (although some early thru-axle road bikes had 15mm-diameter thru-axles). Rear thru-axles usually measure 142mm long and have a 12mm diameter, but you used to be able to find a few bikes with 135mm thru-axles.


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.