Are drum brakes difficult to replace for most vehicle owners?

Are Drum Brakes Hard to Change?

Drum brakes are a common type of braking system found in many vehicles, particularly older models and some modern ones, especially on the rear wheels. While they might not be as prevalent as disc brakes these days, they still serve their purpose effectively. If you’re considering changing your drum brakes yourself, you might be wondering are they hard to change? This article will guide you through the process, the challenges involved, and what tools you'll need, so you can decide if this DIY job is right for you.

Understanding Drum Brakes

Before diving into the replacement process, it's essential to understand how drum brakes work. Drum brakes consist of a hollow drum that rotates with the wheel and brake shoes that press against the inner surface of the drum to create friction, which slows down the vehicle. Over time, brake shoes wear out and may need replacing. Signs that your drum brakes need attention include squeaking noises, reduced braking efficiency, or a pulling sensation when braking.

Tools and Materials Needed

If you decide to tackle the job yourself, you’ll need a few tools and materials. Here’s a basic list

- Socket set and wrenches - Jack and jack stands - A lug wrench - Brake cleaner - Replacement brake shoes - Drum brake spring tool (optional but recommended) - A small bungee cord or rope

Having these tools on hand will make the job much easier and more efficient.

The Process of Changing Drum Brakes

1. Preparation Start by parking your vehicle on a flat, stable surface. Make sure to engage the parking brake, and place wheel chocks behind the front wheels for added security.

2. Lifting the Vehicle Using a jack, lift the back of the vehicle and secure it with jack stands. Remove the wheel using the lug wrench.

3. Removing the Drum Locate the access hole in the rear of the brake drum, which allows you to disengage the parking brake lever. If the drum is stuck, you may need to tap it gently with a hammer to loosen it.

4. Inspecting the Components With the drum removed, inspect the brake shoes, springs, and other components for wear or damage. Generally, if the shoes are thinner than 1/4 inch, they should be replaced.

5. Removing Old Brake Shoes Take note of how the old brake shoes and springs are assembled for reference. Remove the retaining springs and then the brake shoes. Make sure to keep any small parts organized.

6. Installing New Brake Shoes Position the new brake shoes into the drum assembly, using the configuration from your reference as a guide. Reattach the retaining springs, ensuring they are secure.

7. Reinstalling the Drum Slide the brake drum back over the newly installed shoes. Ensure it can rotate freely without rubbing.

8. Final Reassembly Reattach the wheel and tighten the lug nuts. Lower the vehicle back to the ground and perform a final check on the wheels and components to ensure everything is secure.

Challenges and Considerations

Changing drum brakes can be a somewhat tedious task, particularly for those without experience. The intricate nature of the drum brake system, with its various springs and clips, can be daunting. Understanding the spring tension and ensuring parts are correctly installed can be tricky. Moreover, improper installation can lead to poor braking performance, creating safety hazards.

If you are mechanically inclined and comfortable with tools, changing drum brakes can be an affordable and rewarding DIY project. However, if you are unsure about any steps or the assembly process, don’t hesitate to consult a professional. This will save you time, and ensure safety and effectiveness in your vehicle's braking system.

Conclusion

In conclusion, while changing drum brakes may not be the easiest task, it's certainly manageable with the right tools, a thorough understanding of the process, and some patience. Many vehicle owners opt for professional help, particularly if they lack experience in automotive repair. If you choose to perform the change yourself, take your time, follow each step carefully, and ensure you understand the components involved. With practice, you might even find it to be a straightforward task that enhances your understanding of your vehicle's brake system.