converting rear drum brakes to disc brakes

Converting Rear Drum Brakes to Disc Brakes A Comprehensive Guide

Upgrading your vehicle's braking system is one of the most vital enhancements you can make for improved safety and performance. While drum brakes have been standard in many vehicles for decades, disc brakes have gained popularity due to their superior performance, especially under demanding conditions. This article explores the process and benefits of converting rear drum brakes to disc brakes.

Understanding the Differences

Firstly, it is important to understand the fundamental differences between drum and disc brakes. Drum brakes operate by expanding shoes against the inside of a drum, creating friction. This design is effective but has limitations, particularly in performance under high heat and moisture conditions. Conversely, disc brakes utilize a rotor and caliper system that provides more consistent stopping power and better cooling. Consequently, disc brakes are less prone to fade during prolonged use, making them ideal for high-performance vehicles or those used in more demanding driving conditions.

Benefits of Converting to Disc Brakes

1. Increased Stopping Power Disc brakes typically provide greater stopping power than their drum counterparts, particularly in emergency situations where quick braking is necessary.

2. Better Heat Dissipation The design of disc brakes allows for better ventilation and heat dissipation. This characteristic makes them less likely to experience fade, especially during aggressive driving or when towing heavy loads.

3. Easier Maintenance Disc brakes are generally easier to service. The exposed design allows for quicker access to components, making it simpler to replace pads and inspect the system.

4. Improved Aesthetics Many car enthusiasts prefer the visual appeal of disc brakes, with their sleek, modern designs often enhancing the look of a vehicle.

Steps to Convert Drum Brakes to Disc Brakes

1. Gather Your Tools and Parts

Before starting the conversion, you will need several tools, including a jack, jack stands, a wrench set, and possibly a brake line flaring tool. In addition, you will need a disc brake conversion kit compatible with your vehicle. These kits usually include rotors, calipers, pads, and any necessary brackets and hardware.

2. Prepare the Vehicle

Begin by ensuring the vehicle is on a flat surface. Loosen the lug nuts on the rear wheels before lifting the vehicle with a jack. Place jack stands under the vehicle for safety. Remove the rear wheels and set them aside.

3. Remove Existing Drum Brakes

Next, you will need to disassemble the existing drum brake system. This involves removing the brake drums, which can often be done by unscrewing the retaining screws. Once the drums are off, detach the brake shoes, spring assembly, and any other related components. Keep track of how everything is organized, as you may need to reference this when installing the new system.

4. Install the Disc Brake System

With the drum components removed, it is time to install the disc brake kit. Begin by attaching the new brackets to the rear axle as dictated by the conversion kit’s instructions. Once the brackets are in place, mount the rotors and calipers. Ensure that everything is properly aligned and tightened to the manufacturer's specifications.

5. Connect Brake Lines

After the calipers are installed, connect the brake lines. It’s crucial to ensure there are no leaks in the system. If needed, you may have to bend or extend existing brake lines to reach the new calipers properly.

6. Bleed the Brake System

Once everything is installed, bleed the brake lines to remove any air pockets. This step is crucial to ensure that the brakes function effectively. Press the brake pedal several times, and use a bleeder valve on the calipers to release air until only fluid flows out.

7. Test Everything

Before hitting the road, it’s essential to test your new braking system. Start with the vehicle parked, checking the brake pedal responsiveness. After that, take a short drive at low speeds to ensure the brakes engage properly. Gradually increase your speed, testing the brakes under different conditions.

Conclusion

Converting rear drum brakes to disc brakes is an excellent way to enhance your vehicle's performance, safety, and overall driving experience. With the right tools and a methodical approach, you can complete this upgrade yourself and enjoy the numerous benefits that come with improved braking technology. Always remember to prioritize safety and consult professionals if you are uncertain about any part of the process. Happy driving!