Options for Upgrading Rear Drum Brakes to Disc Brakes in Your Vehicle

Converting Rear Drum Brakes to Disc Brakes A Comprehensive Guide

When it comes to vehicle performance and safety, brake systems play a crucial role. Among the various types of brake systems, rear drum brakes have been a traditional choice, especially in older vehicles. However, many automotive enthusiasts and owners are considering upgrading to disc brakes for a multitude of reasons, including improved performance, better heat dissipation, and decreased maintenance. In this article, we will explore the process of converting rear drum brakes to disc brakes, the benefits of such an upgrade, and considerations to keep in mind during the conversion.

Understanding the Differences

Before diving into the conversion process, it is essential to understand the fundamental differences between drum and disc brakes.

Drum brakes consist of a hollow drum that rotates with the wheel. Brake shoes push against the inner surface of the drum to create friction and slow down the vehicle. While effective, drum brakes have some drawbacks, particularly in heat dissipation. When braking repeatedly, drum brakes can overheat, leading to brake fade, which diminishes their effectiveness.

On the other hand, disc brakes employ a flat, circular disc that is clamped by brake pads when the brakes are applied. This design allows for better heat dissipation, improved stopping power, and enhanced performance, especially under heavy loads or during high-speed driving. Additionally, disc brakes are generally easier to service and maintain compared to their drum counterparts.

Benefits of Conversion

1. Improved Performance The enhanced stopping power of disc brakes significantly improves overall vehicle safety and responsiveness. This is especially noticeable in high-performance vehicles or those used for towing.

2. Heat Management Disc brakes dissipate heat better than drum brakes, reducing the risk of brake fade during prolonged use. This is particularly beneficial for drivers who frequently engage in heavy braking, such as in hilly areas or during spirited driving.

3. Easier Maintenance Changing brake pads on disc brakes is often more straightforward than replacing brake shoes, making routine maintenance simpler and less time-consuming.

4. Aesthetic Appeal Many car enthusiasts prefer the visually appealing look of disc brakes, which can enhance the overall appearance of the vehicle.

Converting from rear drum brakes to disc brakes is a project that can be tackled by experienced DIYers or automotive professionals. Below is a general outline of the steps involved in the conversion

1. Research and Purchase Components Begin by researching the specific disc brake conversion kits available for your vehicle model. These kits typically include calipers, rotors, mounting brackets, and all necessary hardware. Ensure that the components are compatible with your vehicle’s make and model.

2. Gather Tools and Safety Equipment Before starting the conversion, gather all necessary tools, including a jack, jack stands, wrenches, and sockets. Remember to wear appropriate safety gear, such as gloves and safety glasses.

3. Remove Existing Drum Brakes Start by loosening the lug nuts and lifting the rear of the vehicle with a jack. Secure it with jack stands. Remove the wheels and then proceed to detach the drum brakes. This typically involves removing the brake drum, disconnecting the brake shoes, and removing the backing plate.

4. Install Disc Brake Components Following the instructions provided with your conversion kit, install the new mounting brackets and attach the disc rotors to the existing axle hubs. Next, install the brake calipers and pads according to the kit’s specifications.

5. Hydraulic System Modification Depending on the vehicle, you may also need to alter the hydraulic brake lines to ensure proper fluid flow to the new calipers. This may involve replacing the brake master cylinder or adding a proportioning valve to balance front and rear brake performance.

6. Bleed the Brakes Once everything is installed, it’s crucial to bleed the brake system to remove any air and ensure proper brake function.

7. Test Drive Finally, after everything is assembled and the brake system is bled, lower the vehicle back to the ground, and conduct a low-speed test drive. Pay attention to the brake responsiveness and any unusual noises; make adjustments if necessary.

Conclusion

Converting rear drum brakes to disc brakes can be a worthy investment for enhanced vehicle performance, safety, and maintenance ease. While the process requires some mechanical skills and a bit of patience, the benefits often outweigh the challenges. If you’re considering this upgrade, ensure that you conduct thorough research and follow all safety guidelines for a successful conversion. Enjoy the improved braking experience!