replacing drum brakes to disc

Replacing Drum Brakes with Disc Brakes Why and How

When it comes to vehicle braking systems, the choice between drum brakes and disc brakes is significant for safety, performance, and maintenance. Many vehicle owners are considering the switch from drum brakes to disc brakes for various reasons, including improved performance, reliability, and ease of use. In this article, we will explore the benefits of replacing drum brakes with disc brakes, the process involved in making the switch, and what vehicle owners should consider before embarking on this upgrade.

Understanding the Basics

Drum brakes have been in use for many decades, primarily in older vehicles and on the rear wheels of some modern cars. They consist of a hollow drum that rotates with the wheel, with brake shoes that expand against the drum's inner surface to create friction and slow the vehicle down. While drum brakes are effective for many applications, they tend to have some limitations, especially in terms of heat dissipation, performance under load, and maintenance.

Disc brakes, on the other hand, have increasingly become the standard in modern vehicles due to their superior performance characteristics. They consist of a rotor (disc) attached to the wheel and brake calipers that squeeze brake pads against the rotor to produce stopping power. The design allows for better heat dissipation, less fading under heavy braking, and more consistent performance in a wide range of conditions.

Benefits of Switching to Disc Brakes

1. Improved Stopping Power Disc brakes generally provide better braking performance than drum brakes. This is crucial for safety, especially during emergency stops or when driving in adverse conditions.

2. Heat Dissipation Disc brakes are more effective at dissipating heat generated during braking. Overheating can lead to brake fade – a reduction in braking effectiveness – which is more prevalent in drum brake systems due to their enclosed design.

3. Maintenance and Longevity Disc brakes require less maintenance than drum brakes. The open design allows for easier inspection and cleaning, leading to longer-lasting components. Drum brakes, on the other hand, can accumulate debris and moisture, leading to rust and wear.

4. Consistent Performance Disc brakes provide a more consistent bite and feel compared to drum brakes, which can sometimes lead to sponginess in pedal feel as they wear.

5. Aesthetic Appeal Many car enthusiasts prefer the look of disc brakes, and upgrading can enhance the appearance of a vehicle, especially for performance cars.

The Conversion Process

Switching from drum brakes to disc brakes can be a straightforward process, but it requires some know-how and the right tools. Here’s what the conversion generally involves

1. Assess Compatibility First, determine if your vehicle can be converted. Some models have readily available disc brake conversion kits that include all necessary components. Research your specific vehicle to find the right kit or decide if custom fabrication is needed.

2. Gather Tools and Parts Besides the conversion kit, you will need standard mechanical tools such as a jack, jack stands, wrenches, and possibly a brake bleeder. Ensure you have new brake pads, rotors, and calipers as originally supplied in the conversion kit.

3. Remove Existing Drum Brakes Begin by safely lifting the vehicle and removing the rear wheels. Then, take out the drum brake assembly, including the drums, shoes, and hardware.

4. Install Disc Brake Components Follow the instructions provided with the conversion kit to install the new disc brake components. This typically involves mounting the brake calipers and rotors securely in place.

5. Bleed the Brakes After installation, it's essential to bleed the brake system to remove any air from the lines. This is crucial for ensuring optimal braking performance.

6. Test the Braking System Once everything is installed and bled, carefully test the brakes in a controlled environment to ensure they are functioning correctly.

Conclusion

Replacing drum brakes with disc brakes is an investment that can yield substantial benefits in performance, safety, and maintenance. Whether you're upgrading for better handling, increased stopping power, or simply for aesthetic reasons, the transition can significantly enhance your driving experience. As with any vehicle modification, it's essential to do thorough research and, if needed, consult with a professional mechanic to ensure the job is done right. With the right approach, switching to disc brakes can be a rewarding upgrade for any vehicle owner.