How to Change Drum Brakes

As with all brake related car components, it is better to replace brake drums before they fail. You will know your drums need replacing if you are noticing squeaking or grinding when you apply your brakes. The specific procedure will vary from one vehicle to the next, but the process will be similar.


Tools & Materials

How To Replace Drum Brakes

As with any job like this, make sure everything is performed to manufacturer’s specifications, and if you’re not completely comfortable doing the job yourself, we’d be happy to recommend a professional technician in your area. We will start with the vehicle jacked up and the wheel removed.

Before you begin: It’s a good idea to pay close attention to how your vehicle brakes before AND after installation to make sure your brakes are functioning properly once the job is completed. Also, use plenty of brake cleaner throughout the process of tearing down. It will improve the longevity and performance of your brakes.

Using rubber mallet to remove brake drum from wheel hub

Step 1: Remove the Brake Drum

Pull out on the drum to remove it from the hub.

You can hit the drum with a rubber mallet if needed, but don’t use a hammer or you could damage the drum.
Remove and inspect brake drum

Step 2: Inspect the Drum and Clean the Assembly

Inspect the drum after removal. If the braking surface of the drum has cracks, blue spots or grooves, it needs to be turned or replaced, which is a service most of our stores offer. Once the drum is removed, check for moisture or dampness at the wheel cylinder.

Do It Right: If one wheel cylinder is bad, the other will begin to leak soon as well, so they should both be replaced. Always replace wheel cylinders in pairs.

Using O'Reilly brake cleaner to clean brake assembly

Spray down the whole assembly with brake cleaner. It’s easier to clean the parts while they’re still installed.

Do It Right: Brake cleaner will strip paint, so use it carefully.

Removing old brake shoes

Step 3: Remove the Old Shoes

Do It Right: Regardless of the vehicle you’re working on, it’s important to take pictures of the assembly once the drum is removed, and set components on the floor in a way that helps you remember which way they’ll go in when you replace them. Do this on both sides once the drums are off, so you’ll have a way to keep track of how everything fits together.


Turn the brake adjuster with a screwdriver or brake spoon to relieve the tension on the lower springs holding the shoes tight.
Removing brake springs, brake shoe retaining pins, and old brake shoes

Use pliers to remove the springs. Remove the brake shoe retaining pins. Start removing the old shoes by pulling them away from the backing plate allowing access to the spring holding the shoes together behind the star adjuster. Loosen the star adjuster and remove the spring which will allow the left shoe to be released from the other shoe. Take the right hand shoe and remove the emergency brake cable.
Compare new brake shoe assembly with old brake shoe assembly

Now remove the old shoes.

Do It Right: As you remove components from the brake system, set them on the floor or on a table in the same arrangement as they were in on the backing plate. This will help you remember where the parts go when you reattach them. It also allows you to compare the new kit with the old to make sure you’ve got the right parts. They should be identical except for the wear. Brake shoe springs should be replaced with every set of brake shoes. Brake springs lose elasticity like rubber bands and will not hold the brake shoes firmly if worn.

Clean and inspect star wheel

Step 4: Clean and Inspect the Star Wheel

Clean and inspect the star wheel. It should turn freely the entire range of the threads. The star wheel assembly should be replaced if it will not turn freely. If there is rust on the threads it should be replaced. Never clean the star wheel assembly with a steel brush. Also, if the zinc rust-preventative coating is missing, it will rust and freeze up quickly, not allowing your brakes to adjust automatically.
Compare new break shoe with old brake shoe

Step 5: Replace the Primary Shoe

Match the shoe lining and the holes on the new shoe to the lining and holes on the old shoe, to ensure you’re replacing the same shoe. The length of the brake friction material may vary slightly.
Attach spring to parking brake lever

Use pliers to pull down on the spring of the parking brake cable to attach it to the parking brake lever. If there is rust present, check the parking brake cable to make sure it is working freely before starting assembly, and replace the cable if necessary.

Due to the spring behind the star adjuster on this vehicle, it’s easier to start with the shoes away from the backing plate near the axle hub. Install the star adjuster between the left brake shoe and the right emergency brake lever. Install the spring between the two shoes behind the star adjuster. Slide both shoes into place against the backing plate.
Replace brake shoe retaining pin on both brake shoes

Replace the brake shoe retaining pin on both brake shoes, turning it ninety degrees to secure it.
Install lower brake spring between two brake shoes

Install the lower brake spring between the two shoes. Install the self adjuster lever onto the star adjuster. Install the brake spring on the left side of the assembly between the self adjuster lever and the bottom of the brake shoe.
Use star wheel adjuster to adjust brake shoes

Use the star wheel adjuster to adjust the shoes outward, making sure the drum will fit over the shoes and onto the studs or hub freely.
Wiper down new brake drum with brake cleaner

Step 6: Install the New Brake Drum

Wipe down the brake surface of your new or resurfaced brake drum with brake cleaner and install it. Adjust the shoes out until you feel slight resistance against the drum.
Replace brake drums, then put wheels back on and tighten lug nuts

On our application, we’ll locate our inspection plug on our backing plate and replace it. Repeat these steps on the other side. Both sides of the vehicle should have the same amount of resistance between the shoe and the drum.

Once you’ve got your wheels back on, finger-tighten the lug nuts and let your vehicle back down. Then tighten your lug nuts in a star pattern. Use a torque wrench to make sure you tighten them to manufacturer specifications.
Once the job is complete—before you drive anywhere—be sure to pump your brake pedal several times until you feel the pressure return. It should feel the way it did before the brake job. Check your master cylinder and add fluid as needed.

You may need to adjust your brake shoes after driving a few hundred miles, or if your brake pedal engages too close to the floor. If you do have to push your pedal down to the floor before your brakes engage, adjust the brake shoes so that they’re tighter against the drum.

And that’s it. Just make sure your brake pedal has pressure before you go tearing out of the garage.

Additional Resources

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The automotive repair work depicted in this series is performed under the direction of the manufacturer of the product featured. Prior to undertaking any of the demonstrated repairs on your vehicle, we suggest you consult with a certified mechanic or another professional who can adequately advise you of the proper repair or remedy required. O’Reilly Automotive Stores, Inc. and its affiliates (“O’Reilly”) disclaims any responsibility for injury or damage resulting from a viewer’s attempt to recreate the repairs shown in this series.