How to Change Brake Drums to Discs

Upgrading from brake drums to disc brakes can significantly enhance your vehicle’s braking performance. Disc brakes generally provide better stopping power, shorter braking distances, and improved heat dissipation compared to drum brakes. If you are considering undertaking this conversion, here’s a comprehensive guide to help you navigate the process.

Why Upgrade to Disc Brakes?

Before we delve into the steps for converting brake drums to discs, it's essential to understand the benefits of this upgrade. Disc brakes offer

1. Improved Performance Disc brakes are less prone to fading under heavy use. They maintain consistent performance, especially in high-demand situations such as towing or driving in hilly terrains. 2. Better Heat Dissipation Disc brakes have a larger surface area that allows for better heat exchange. This helps to prevent brake fade, which can occur when brakes overheat.

3. Easier Maintenance Disc brakes are generally easier to service than drum brakes. Changing pads is straightforward and can often be done without disassembling the entire braking system.

4. Aesthetic Appeal Many enthusiasts prefer the appearance of disc brakes, especially when modifying or customizing vehicles.

Required Tools and Parts

Before you start the conversion, make sure you have the right tools and parts. Here’s a basic list

- New disc brakes and rotors - Brake calipers (ensure they are compatible with your vehicle) - Brake pads - Brake lines (may need to be upgraded) - Brake fluid - Wrenches and sockets - Jack and jack stands - Brake cleaner - Torque wrench - Safety glasses and gloves

Step-by-Step Conversion Process

1. Preparation

- Gather your tools and parts. Ensure you have everything you need for the conversion. - Park your vehicle on a flat surface, engage the parking brake, and use wheel chocks for added safety.

2. Remove the Wheels

- Use a jack to lift the vehicle and securely place it on jack stands. Remove the wheels to access the brake assembly.

3. Remove the Old Drum Brakes

- Disconnect the brake line from the drum brake assembly. Be prepared for some brake fluid to leak out. - Remove any retaining clips or bolts holding the drum in place. Then, slide the drum off to expose the brake shoes and hardware. - Remove the brake shoes and associated parts, taking note of how they are assembled for reference.

4. Install the Disc Brake Setup

- Attach the new bracket for the disc brake caliper. This may require drilling or modifications to the spindle, depending on your vehicle model. - Install the brake rotors onto the hub. Ensure they are seated properly and securely fastened. - Mount the calipers onto the bracket and connect the new brake lines if necessary. Ensure all connections are tight and leak-free.

5. Install Brake Pads

- Install the new brake pads into the calipers according to the manufacturer’s instructions. Make sure they are seated properly to ensure even braking.

6. Connect Brake Lines and Add Fluid

- If you’ve installed new brake lines, connect them to the calipers and ensure they are secure. - Bleed the brake lines to remove any air bubbles, which can affect braking performance. - Add new brake fluid to the master cylinder, following the recommended specifications for your vehicle.

7. Reassemble and Test

- After ensuring everything is installed correctly and securely, replace the wheels. - Lower the vehicle and torque the wheel nuts to the manufacturer’s specifications. - Before hitting the road, pump the brakes a few times to seat the pads against the rotors.

Conclusion

Converting from brake drums to disc brakes can be a rewarding upgrade for your vehicle. While the process may seem daunting, with careful preparation and attention to detail, it is achievable for those with a basic understanding of automotive maintenance. Always consult your vehicle’s service manual for specific instructions and modifications unique to your model. As with any upgrade, ensure you test the new braking system in a safe environment before returning to regular driving. Enjoy the improved safety and performance that comes with your new disc brakes!