how to change from drum brakes to disc brakes

How to Change from Drum Brakes to Disc Brakes

Upgrading your vehicle's brake system from drum brakes to disc brakes can significantly enhance your vehicle's braking performance, safety, and overall driving experience. While drum brakes are effective for many applications, disc brakes offer superior heat dissipation, better stopping power, and improved response. If you're considering this upgrade, follow this comprehensive guide to ensure a successful transition.

Understanding the Differences

Before diving into the conversion process, it’s essential to understand the primary differences between drum and disc brakes. Drum brakes consist of a cylindrical drum that rotates with the wheel, while shoes press against the inner surface of the drum to slow down the vehicle. In contrast, disc brakes rely on calipers that squeeze pads against a flat disc (rotor) to create friction and slow the vehicle down. This design allows for better performance, especially under heavy braking conditions.

Tools and Materials Needed

Before starting the conversion, gather the necessary tools and materials

- Disc brake conversion kit specific to your vehicle - Jack and jack stands - Tire iron - Brake cleaner - Brake fluid - Wrenches and sockets - Screwdrivers - Piston compressor tool (if needed) - Safety gear (gloves, goggles)

Step-by-Step Conversion Process

1. Preparation Park your vehicle on a level surface, turn off the engine, and engage the parking brake. Wear safety gear before starting the process.

2. Remove the Wheels Use a tire iron to loosen the lug nuts on the wheels. Elevate the vehicle using a jack and secure it with jack stands. Finish removing the lug nuts and take off the wheels.

3. Remove Drum Brakes Disconnect the brake lines and remove any retaining clips securing the drum brake assembly. Take off the drums, leaving the backing plate exposed.

4. Install the New Brake Components Begin by installing the new brake caliper brackets according to your conversion kit’s instructions. Ensure they are securely attached to the spindle assembly.

5. Install the Rotors Slide the new rotors onto the hub. Make sure they are seated correctly. If your kit includes wheel spacers, assemble them according to the manufacturer's guidelines.

6. Attach Calipers and Brake Pads Install the new brake calipers over the rotors and secure them according to your kit instructions. Insert the brake pads into the calipers. It's crucial that the pads are correctly positioned to avoid uneven wear.

7. Reconnect Brake Lines Reattach the brake lines to the calipers. Ensure all connections are tight to prevent leaks. Use brake cleaner to wipe any residue from the installation process.

8. Bleed the Brakes This step removes any air from the brake lines. Start by filling the brake fluid reservoir with the appropriate fluid. Then, at each caliper, use a brake bleeder tool to release air, ensuring a solid brake feel.

9. Reinstall Wheels Replace the wheels and hand-tighten the lug nuts. Once all the wheels are back on, lower the vehicle to the ground and then fully tighten the lug nuts using the proper torque specs.

10. Test the Brakes Before hitting the road, pump the brake pedal a few times to set the pads against the rotors. Conduct a slow-speed test after confirming all components are secure.

Conclusion

Converting from drum brakes to disc brakes can dramatically improve your vehicle's braking performance. Although the process involves several steps and may require a moderate level of mechanical experience, the result is well worth it. Enhanced stopping power, reduced brake fade, and improved safety are just some of the benefits of this upgrade. Always consult your vehicle's manual and consider enlisting a professional if you are unsure about any part of the process. Happy driving!