converting drum brakes to disc

Converting Drum Brakes to Disc Brakes A Comprehensive Guide

When it comes to automotive brake systems, safety and performance are paramount. One area of upgrading vehicles that often goes overlooked is the conversion from drum brakes to disc brakes. While drum brakes have been a reliable choice for many years, disc brakes offer several advantages, including improved stopping power, better heat dissipation, and enhanced overall performance. In this article, we will explore the benefits of converting drum brakes to disc brakes, the necessary parts and tools, and the step-by-step process to achieve this upgrade.

Advantages of Disc Brakes Over Drum Brakes

1. Increased Stopping Power Disc brakes typically provide superior stopping power compared to drum brakes. This is due to the larger surface area of the disc, which allows for more friction to be generated when the brake pads clamp down. This increased friction results in shorter stopping distances, which is particularly important in emergency situations.

2. Better Heat Dissipation Disc brakes have a better ability to dissipate heat than drum brakes. When brakes are applied, they generate heat, which can lead to brake fade, a condition where the brakes lose effectiveness due to overheating. The open design of disc brakes allows for better airflow, reducing the risk of overheating and maintaining consistent performance even during heavy use.

3. Ease of Maintenance Disc brakes are generally easier to inspect and maintain than drum brakes. The components are more accessible, and replacing brake pads is simpler. In contrast, drum brakes can be tedious to service as they require disassembly.

4. Improved Aesthetics For car enthusiasts, disc brakes often look more appealing than traditional drum brakes. The sight of shiny, machined discs behind a set of alloy wheels can enhance the overall appearance of a vehicle.

Parts and Tools Needed

Before starting the conversion, gather the necessary parts and tools

Parts Needed - Disc brake rotors - Brake calipers and brackets - Brake pads - Brake lines (if required) - Hoses and fittings (if necessary) - New wheel bearings (if applicable) - New spindles (in some cases)

Step-by-Step Conversion Process

1. Prepare the Vehicle Begin by safely lifting the vehicle using a jack and placing it on jack stands. Remove the wheel to access the brake assembly.

2. Remove the Drum Brakes Take off the drum brake assembly, which includes the drum, shoes, and hardware. Keep track of the parts as you’ll need to refer to them during reinstallation.

3. Install New Wheel Bearings If you are replacing the spindles, this is the time to install new wheel bearings. Make sure they are properly greased and seated.

4. Mount the Caliper Bracket Attach the caliper bracket to the spindle. Ensure the bracket is aligned correctly according to the manufacturer instructions, and torque it to the specified settings.

5. Install the Disc Rotors Slide the new disc rotors onto the hub, ensuring they are seated properly against the mounting surface. Secure them using the appropriate fasteners.

6. Attach the Brake Caliper Position the brake caliper over the rotor and secure it with the provided bolts. Ensure that the caliper can move freely and is not making contact with the rotor when not engaged.

7. Install Brake Pads Insert the new brake pads into the caliper. Make sure they are positioned correctly and are ready to engage the rotor.

8. Connect Brake Lines If new brake lines are needed, connect them according to the manufacturer's specifications. Bleed the brake system to remove air from the lines, ensuring proper brake response.

9. Repeat on the Other Side Once the first wheel is completed, repeat the process on the other side of the vehicle.

10. Final Checks After installation, make sure all bolts are torqued to specification and check the brake fluid levels. Test the brakes in a safe environment before taking the vehicle on the road.

Conclusion

Converting drum brakes to disc brakes is a worthwhile upgrade for anyone looking to enhance their vehicle's braking performance and reliability. While the process involves detailed work, the benefits of improved safety and performance make it a valuable investment. With the right tools and a methodical approach, even novice mechanics can successfully complete this conversion, ensuring that their vehicle is equipped with modern and efficient braking technology.