Converting Rear Drum Brakes to Disc Brakes for Improved Performance and Safety

How to Change Rear Drum Brakes to Disc Brakes

Upgrading your vehicle’s braking system from drum brakes to disc brakes can be a worthwhile investment, enhancing both safety and performance. While drum brakes are generally effective, disc brakes provide better stopping power, heat dissipation, and less maintenance over time. This article will guide you through the process, addressing tools needed, steps to follow, and important considerations.

Tools and Materials You Will Need

Before diving into the installation process, gather the following tools and materials

1. Tools - Socket set - Wrenches - Jack and jack stands - Screwdrivers - Brake line tool - Torque wrench - Brake cleaner - C-clamp or brake caliper tool

2. Materials - Disc brake conversion kit (specific to your vehicle) - New brake pads - New rotors - Brake fluid - Brake line (if necessary) - Miscellaneous hardware (bolts, washers, etc.)

Step-by-Step Process

1. Safety First Begin by ensuring your vehicle is parked on a flat surface. Engage the parking brake, and wear safety glasses and gloves for protection. Disconnect the battery to avoid any electrical issues during the installation.

2. Lift the Vehicle Use a jack to lift the rear of the vehicle and secure it with jack stands. This will provide you the necessary space to remove the wheels and access the brakes.

3. Remove the Wheels Take off the rear wheels using a socket and ratchet. Set them aside in a safe place.

4. Take Off the Drum Brakes Locate the brake drums. Remove the retaining screws (if equipped) and carefully pull the drums off the wheel hubs. If the drums are stuck due to rust or debris, carefully tap them with a rubber mallet to loosen them.

5. Remove the Old Components Detach the brake shoes, springs, and other associated components. Take note of how everything is assembled, as this will help you when installing the new system.

6. Install the Disc Brake Components Depending on your conversion kit, you may need to attach new brackets to accommodate the disc brakes. Follow the specific instructions provided in your kit. Attach the new brake calipers and make sure they are secured tightly.

7. Attach the Rotors Slide the new rotors onto the wheel hub. Ensure they sit flush and are aligned properly. Install any necessary retaining hardware.

8. Install the Brake Calipers Fit the brake pads into the calipers and slide the calipers over the rotors. Securely fasten them, and make sure they are aligned properly.

9. Brake Lines If your kit requires it, replace the existing brake lines with the new ones included in the conversion kit. Ensure that all connections are tight to prevent leaks.

10. Bleed the Brakes Once everything is installed, you will need to bleed the brake system to remove any air bubbles. Start at the caliper furthest from the master cylinder and work your way closer, ensuring a firm brake pedal.

11. Replace the Wheels Reattach the wheels and hand-tighten the lug nuts. Once both wheels are on, use a torque wrench to tighten them to the manufacturer’s specifications.

12. Test Drive Before hitting the road, perform a thorough check of the brake system, ensuring everything is secure and functioning properly. Take a test drive at a low speed to make sure the brakes are working effectively.

Conclusion

Converting rear drum brakes to disc brakes is a project that can boost your vehicle's performance and safety. While it may seem daunting, with the right tools, materials, and a detailed plan, you can successfully complete this upgrade. Always refer to your vehicle’s specific service manual for detailed instructions and safety guidelines. Happy driving!