how to change from drum brakes to disc

How to Change from Drum Brakes to Disc Brakes

Upgrading from drum brakes to disc brakes is a popular modification for many car enthusiasts and those looking to improve their vehicle's braking performance. Disc brakes generally provide better stopping power, heat dissipation, and a more consistent pedal feel compared to drum brakes. Here’s a comprehensive guide on how to carry out this conversion.

Understanding the Components

Before starting the upgrade, it’s important to understand the main components involved in both drum and disc brake systems. A drum brake system consists of a drum, shoes, springs, and a wheel cylinder. In contrast, disc brakes consist of a rotor, caliper, brake pads, and a hydraulic system. When considering the upgrade, you will need to acquire a complete disc brake conversion kit suitable for your specific vehicle model, as compatibility is crucial.

Tools and Materials Needed

1. Basic hand tools wrenches, sockets, and screwdrivers. 2. jack and jack stands. 3. Brake line kit (if necessary). 4. Disc brake conversion kit (rotors, calipers, pads). 5. Hydraulic brake fluid. 6. Torque wrench.

Step-by-Step Installation

1. Preparation Ensure your vehicle is on a flat surface, engage the parking brake, and loosen the lug nuts slightly before jacking up the car.

2. Remove the Wheels Lift the vehicle using a jack and securely place jack stands. Take off the wheels to gain access to the brake components.

3. Remove Drum Brakes - Detach the drum by removing the retaining screws or clips. - Carefully pull the drum off the hub, taking note of any springs or components that may come loose. - Remove the brake shoes and wheel cylinder, disconnecting the hydraulic lines if needed.

4. Install the Disc Brake Components - Attach the new brake rotor to the hub. Make sure it sits flush and is securely bolted on. - Mount the caliper bracket to the vehicle’s suspension. - Install the caliper over the rotor, ensuring it aligns with the mounting points. - Position the brake pads in the caliper, ensuring they fit snugly against the rotor.

5. Brake Lines and Fluid - If your kit includes new brake lines, install them according to the manufacturer’s instructions. - Use a brake line kit if your existing lines do not fit. - Once all components are in place, bleed the brakes to remove any air from the system using the appropriate bleed procedure (usually starting from the furthest wheel from the master cylinder).

6. Reassemble and Test - Reinstall the wheels and lower the vehicle back to the ground. - Torque the lug nuts to the manufacturer’s specifications. - Before driving, pump the brake pedal a few times to ensure the pads make contact with the rotor.

Final Thoughts

Upgrading from drum brakes to disc brakes can significantly enhance your vehicle's braking performance and safety. While the process can be intricate, following these steps carefully will ensure a smoother transition. If you feel uncertain at any point, don’t hesitate to consult a professional mechanic. Enjoy the improved performance that comes with your new disc brake system!