how to change from drum brakes to disc brakes

How to Change from Drum Brakes to Disc Brakes A Comprehensive Guide

Upgrading your vehicle's braking system from drum brakes to disc brakes can significantly enhance performance, safety, and overall driving experience. While drum brakes are reliable, disc brakes offer better heat dissipation, improved stopping power, and reduced brake fade. This article will walk you through the steps to make this conversion effectively.

Understanding the Basics

Before diving into the conversion process, it's essential to understand the key differences between drum and disc brakes. Drum brakes have a set of shoes that press against the inner surface of a drum to create friction, while disc brakes use a caliper to clamp down on a disc (or rotor) to slow down the vehicle. Disc brakes are generally preferred for modern vehicles due to their superior performance characteristics.

Tools and Materials Needed

To change from drum brakes to disc brakes, gather the following tools and materials

- Brake disc conversion kit compatible with your vehicle - New brake calipers and pads - Brake fluid - Brake line fittings - Basic hand tools (wrenches, sockets, etc.) - Jack and jack stands - Torque wrench - Safety glasses and gloves

Step-by-Step Process

1. Safety First

Before beginning any work on your vehicle, ensure that it is parked on a flat surface, and engage the parking brake. Wear safety goggles and gloves to protect yourself from debris and brake fluid exposure.

2. Remove the Wheel

Using a jack, lift the vehicle and secure it on jack stands. Remove the wheel lug nuts with a socket wrench and take off the wheel to expose the drum brake assembly.

3. Remove the Drum Brake Assembly

Next, you will need to remove the drum brake assembly. Start by taking off the drum itself, which may require you to tap it gently if it's stuck. Once removed, detach the brake shoes, springs, and backing plate. This may involve unscrewing or unbolting various components, so ensure you keep track of all the parts.

4. Install the Brake Disc Conversion Kit

Follow the instructions provided with your brake disc conversion kit. This will usually involve installing a new backing plate and attaching the brake disc (rotor) in place of the drum. Ensure that all components are securely fastened and aligned correctly.

5. Install Calipers and Brake Pads

Once the rotor is installed, it's time to mount the new brake calipers. Attach the calipers according to the manufacturer's specifications, ensuring they are positioned correctly over the rotor. Then, insert the new brake pads into the calipers.

6. Connect Brake Lines

If your conversion kit includes new brake lines or requires modifications to existing lines, carefully install these now. Make sure all connections are secure and there are no leaks. Depending on your vehicle, additional modifications may be necessary to fit the new components.

7. Bleed the Brakes

After everything is connected, you will need to bleed the brakes to remove any air from the hydraulic system. This is crucial for ensuring optimal brake performance. You can do this by starting at the wheel farthest from the master cylinder and working your way closer. Have a helper press the brake pedal while you open and close the bleeder screw on the caliper.

8. Reinstall Wheel and Lower the Vehicle

Once the brakes are bled and functioning correctly, reinstall the wheel and hand-tighten the lug nuts. Lower the vehicle off the jack stands, and then use a torque wrench to tighten the lug nuts to the manufacturer's specifications.

Conclusion

Changing from drum brakes to disc brakes is a rewarding upgrade that can significantly improve your vehicle's braking performance and safety. While the process may seem daunting, with the right tools and careful attention to detail, you can successfully complete this conversion. Always consult your vehicle’s service manual and consider seeking help from a professional if you feel uncomfortable with any part of the process. Road safety begins with effective braking, and upgrading to disc brakes is a proactive step toward ensuring a safer drive.

With the new disc brake system in place, you'll enjoy enhanced stopping power and a more responsive feel every time you hit the road.