DIY Guide: How to Replace the Axle of a 2005 Subaru Legacy

If you own a 2005 Subaru Legacy and are experiencing issues with your vehicle’s axle, there’s no need to panic or spend a lot of money at a professional mechanic. You can save time and money by replacing the axle yourself with some basic knowledge and the right tools. In this article, we will provide you with a step-by-step guide on how to replace the axle of your 2005 Subaru Legacy. We will also cover the necessary safety precautions, required tools and materials, tips and tricks, and post-repair checks to ensure everything is working correctly.

Symptoms of a Bad Axle

Before you begin the repair process, you must first identify if your Subaru Legacy’s axle is damaged. Some common symptoms of a bad axle are:

  • Loud clicking noises when turning
  • Vibrations that get worse at higher speeds
  • Debris or grease on the tire’s wheel well
  • Wobbling or shaking while driving
  • Difficulty steering or shaking in the steering wheel

If you notice any of these symptoms, it’s time to replace your axle.

Safety Precautions

Before you start replacing the axle, it’s crucial to take some safety precautions. Ensure that:

  • Your car is parked on flat ground and secured with the parking brake.
  • You wear protective gear, including safety glasses and gloves.
  • You disconnect the battery to avoid any electrical shock.
  • You wait for the car’s engine to cool before starting the repair process.
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Required Tools and Materials

To replace the axle, you will need the following tools and materials:

  • Jack and jack stands
  • Lug wrench
  • Socket wrench set
  • Pry Bar
  • Hammer
  • New axle
  • New Cotter pin

Step-by-Step Process

Now that you have all the required tools and materials and have taken the necessary safety precautions, it’s time to replace the axle. Follow these step-by-step instructions:

  1. Remove the wheel: Use the lug wrench to remove the wheel, then loosen the axle nut with a socket wrench.

  2. Raise the car: Use a jack to raise the car and secure it using jack stands.

  3. Remove the cotter pin: Use the pry bar to remove the cotter pin from the axle nut.

  4. Remove the axle nut: Using a socket wrench, remove the axle nut.

  5. Remove the brake caliper: Use a socket wrench to remove the bolts that hold the brake caliper in place and secure it with a wire.

  6. Remove the rotor: Remove the rotor from the hub assembly.

  7. Remove the old axle: Use the pry bar to remove the old axle from the hub assembly.

  8. Replace with a new axle: Insert the new axle into the hub assembly.

  9. Reassemble: Follow steps 7 to 1 in reverse to reassemble the various parts.

  10. Test the car: Test drive your car to see if it’s performing correctly.

Tips and Tricks

Here are some tips and tricks to make the process more manageable:

  • Use a penetrating oil to loosen any rusted bolts or nuts.
  • Avoid damaging the CV joint by not pulling on the axle shaft.
  • Apply anti-seize lubricant to the new axle before installing it to avoid rust.
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Post-Repair Checks

After you complete the repair, it’s important to perform some post-repair checks to ensure everything is functioning correctly. These include:

  • Checking for any leaks or noises.
  • Inspecting the brake system to make sure it is working correctly.
  • Checking the wheel alignment to make sure it’s in a straight line.


  1. How long does it take to replace a Subaru Legacy axle?
    The entire process takes about 2-3 hours if you have the right tools and materials.

  2. How much does it cost to replace a Subaru Legacy axle?
    The cost of replacing an axle varies depending on your location and the cost of the parts. However, replacing the axle yourself can save you a lot of money.

  3. Is it safe to replace a Subaru Legacy axle yourself?
    Yes, it’s safe if you follow the necessary safety precautions, have the right tools and materials, and have some basic knowledge of car maintenance and repair.


Replacing the axle on your 2005 Subaru Legacy may seem like a daunting task. However, by following the step-by-step guide, taking the necessary safety precautions, and having the right tools and materials, you can do it yourself. Not only will you save money, but you’ll also gain some valuable knowledge and skills that will be useful for future car maintenance and repair.

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Billy Covington

With a passion for all things automotive, Billy is our go-to expert on Subaru performance upgrades and modifications. He's been featured in several car magazines and blogs, and his extensive knowledge and expertise make him a valuable member of our team. When he's not working on cars, he enjoys playing guitar and writing music.

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