Steps to Upgrade Rear Drum Brakes to Disc Brakes for Enhanced Performance

How to Convert Rear Drum Brakes to Disc Brakes

If you're looking to enhance the braking performance of your vehicle, converting rear drum brakes to disc brakes can significantly improve stopping power and reduce brake fade. While the process can be intricate, with the right tools and knowledge, it can be a rewarding DIY project. Here’s a step-by-step guide on how to make the switch.

Why Convert to Disc Brakes?

Drum brakes are typically found on older cars and are generally less efficient than disc brakes. Disc brakes provide better heat dissipation due to their design, which helps prevent brake fade during severe braking conditions. Additionally, they offer improved performance in wet conditions, as water can easily drain off the disc surface, maintaining better grip.

Tools and Materials Needed

1. Disc Brake Kit – This will include rotors, calipers, and installation hardware specific to your vehicle. 2. Brake Lines – New lines may be needed to accommodate the disc brake system. 3. Brake Pads – Make sure you purchase a suitable set for your new disc brakes. 4. Wrench Set – For removing and tightening bolts. 5. Jack and Jack Stands – To lift the vehicle safely. 6. Brake Fluid – Ensure you have enough to complete the process and bleed the brakes. 7. Torque Wrench – To ensure bolts are tightened to specifications.

1. Safety First Begin by ensuring your vehicle is parked on a flat surface. Use wheel chocks to prevent movement and lift the rear of the vehicle using a jack. Secure it with jack stands.

2. Remove the Drum Brakes Start by removing the rear wheels. Then, take off the drum brake assembly. This typically involves unbolting the drum and disassembling the brake shoes, springs, and related components. Keep all hardware as you may need it for reference.

3. Install the Disc Brake Components Fit the new disc brake mounting bracket to the axle housing. The bracket will hold the caliper in place. Follow the instructions included in your disc brake kit carefully, as they can vary by manufacturer.

4. Attach the Brake Rotors Slide the new rotors onto the axle hub. Make sure they are seated correctly and securely.

5. Install the Calipers Attach the calipers to the mounting brackets. Ensure the calipers are positioned correctly over the brake rotors and use your torque wrench to tighten the bolts to the specified torque.

6. Connect Brake Lines If your disc brake kit includes new brake lines, replace the old lines with the new ones. Ensure all connections are snug but do not overtighten.

7. Bleed the Brakes Once everything is installed, you need to bleed the brake system to remove any air. This process typically starts at the wheel farthest from the master cylinder and moves toward the closest.

8. Test the Brakes Before returning your vehicle to the road, pump the brakes to ensure they feel firm. Conduct a brake test in a safe and controlled environment to confirm everything is functioning correctly.

Conclusion

Converting from rear drum brakes to disc brakes can greatly improve your vehicle's performance. While the process may require some mechanical skill, the results are often well worth the effort. With better stopping power and heat management, your driving experience will be enhanced, giving you peace of mind behind the wheel. Always consider consulting with a professional if you have any doubts during the conversion process.