Brake Drum to Disc Conversion An Overview
The braking system is one of the most crucial components of a vehicle's safety and performance. Traditionally, many vehicles were equipped with brake drums, particularly in the rear, while disc brakes were commonly used in the front. However, the trend has shifted over the years, with more manufacturers opting for disc brakes all around. This article will explore the reasons behind converting brake drums to disc brakes, the benefits of this conversion, and tips for a successful upgrade.
Understanding Brake Drum and Disc Brakes
Before diving into the conversion process, it’s essential to understand the basic mechanics of both systems. Brake drums work by using friction created by brake shoes that press against the inner surface of a rotating drum. This setup can be effective in certain applications but is often prone to issues such as overheating and fade under extreme conditions.
Conversely, disc brakes function by clamping brake pads against a rotor (the disc) mounted on the wheel. This design allows for better heat dissipation, improved stopping power, and reduced chances of brake fade, particularly during high-speed or prolonged braking situations.
Reasons for Conversion
1. Enhanced Performance One of the most significant benefits of converting from drum to disc brakes is the improvement in braking performance. Disc brakes provide greater stopping power and quicker response times, a factor that can be crucial in emergency situations.
2. Better Heat Dissipation Discs are typically vented, which aids in the release of heat generated during braking. This characteristic reduces the likelihood of brake fade, a phenomenon where brakes lose effectiveness due to overheating.
3. Easier Maintenance Disc brakes are generally easier to service compared to drum brakes. Changing pads and rotors can often be done more quickly and with less complicated tools, making routine maintenance less of a hassle.
4. Improved Aesthetics For car enthusiasts and restorers, disc brakes often provide a more modern and aesthetically pleasing look. The visual appeal of slotted or drilled rotors can enhance the overall appearance of the vehicle.
Conversion Process
The conversion from drum to disc brakes can be a complex task, depending on the specific vehicle and its configuration. Here’s a simplified overview of the steps involved
1. Research and Planning The first step is to gather information on the specific parts needed for the conversion. This includes rotors, calipers, pads, and any additional hardware. Consulting forums, manuals, or professionals can provide valuable insights.
2. Gathering Parts Purchase the necessary components. Many aftermarket suppliers offer conversion kits specifically designed for various models, simplifying the process.
3. Disassembly Begin by removing the existing drum brakes, which includes taking off the wheel, detach the drum, and removing the brake shoes and associated hardware.
4. Installation Install the disc brake components according to the manufacturer’s instructions. This usually involves securing the rotor to the hub, attaching the caliper assembly, and hooking up brake lines.
5. Bleeding the System After installation, it’s crucial to bleed the brake lines to remove any air and ensure proper brake function.
6. Testing Before hitting the road, test the brakes in a safe environment to ensure everything functions correctly. Pay attention to any unusual noises or behaviors.
Conclusion
Converting from brake drums to disc brakes can offer numerous advantages, including improved performance, reduced maintenance time, and enhanced safety. Whether for a classic restoration or an upgrade for modern performance, this conversion is worthwhile for many vehicle owners. Always ensure that the conversion is performed correctly and consult a professional if unsure about any steps in the process. A well-executed brake upgrade can transform a vehicle's driving experience, making it safer and more enjoyable on the road.