changing rear drum brakes to disc brakes

Upgrading From Rear Drum Brakes to Disc Brakes A Comprehensive Guide

Upgrading your vehicle's rear drum brakes to disc brakes can significantly enhance braking performance, safety, and overall driving experience. While drum brakes have been a traditional choice in many vehicles due to their simplicity and lower cost, disc brakes offer superior performance, especially in high-demand driving situations. This article will explore the reasons to consider such an upgrade, the benefits of disc brakes, and a step-by-step guide on how to make the transition.

Why Upgrade?

1. Improved Stopping Power Disc brakes typically offer better stopping power compared to drum brakes. They dissipate heat more efficiently, which is crucial during prolonged braking situations, such as driving downhill or during emergency stops.

2. Consistent Performance As drum brakes heat up, their performance can deteriorate due to brake fade, particularly under heavy use. Disc brakes maintain their performance consistently, providing reliable stopping ability, even during extended periods of braking.

3. Easier Maintenance Disc brakes are generally easier to inspect and maintain. Unlike drum brakes, which require disassembly for inspection, disc brakes are accessible and can be checked without major disassembly, making routine maintenance much simpler.

4. Increased Safety With improved stopping power and performance consistency, disc brakes contribute to enhanced safety. This is especially important in high-speed or demanding driving conditions, where having effective braking is critical to avoid accidents.

5. Better Wet Weather Performance Disc brakes perform better in wet conditions since water can escape more easily from the surface of the disc. In contrast, drum brakes can hold water and lead to a temporary loss of performance until they dry out.

Upgrading from drum to disc brakes might seem daunting, but with the right approach, it can be manageable. Here's a basic guide to help you through the process

1. Research and Planning Start by understanding your vehicle's compatibility with disc brakes. Consult the vehicle’s manual or online forums for advice from experienced DIYers. Determine the necessary parts, which typically include rotors, calipers, mounting brackets, and pads.

2. Gather Required Tools and Parts You'll need basic wrench sets, a jack, jack stands, and perhaps a brake line wrench. Make sure you have all the parts ready to avoid delays during the installation.

3. Remove the Existing Drum Brakes - Begin by safely jacking up the vehicle and removing the wheels. - Disconnect the brake lines from the drum brake assembly and remove the brake drum. - Take out the brake shoes, springs, and the backing plate, following the vehicle’s repair manual for specific instructions.

4. Install the Disc Brake Components - Attach the new backing plates and ensure they align correctly with the suspension components. - Install the new rotors, making sure they are seated properly. - Mount the calipers onto the new brackets and secure them with the provided hardware.

5. Connect Brake Lines Be sure to connect any necessary brake lines to the calipers. Make sure to use the correct fitting to avoid leaks. Bleed the brake system according to the manufacturer’s recommendations to remove any air from the lines.

6. Reassemble and Test Reattach the wheels and lower the vehicle. Before hitting the road, pump the brakes to ensure the calipers are properly seated and the pads are making contact with the rotors. Test the brakes at low speeds in a safe area to ensure everything is functioning as expected.

Conclusion

Upgrading from rear drum brakes to disc brakes is a worthwhile investment for enhanced safety and vehicle performance. Although the process requires careful planning and execution, the benefits—improved stopping power, better maintenance accessibility, and increased safety—can significantly elevate your driving experience. Whether you are a seasoned mechanic or an enthusiastic DIYer, making this upgrade is an exciting way to improve your vehicle’s capabilities. With this guide, you can approach the upgrade with confidence and get back on the road with newfound braking power.