Converting brake drums to disc brakes is a popular modification for car enthusiasts seeking improved braking performance and handling. While drum brakes are effective, disc brakes offer several advantages, including better cooling, reduced fade under heavy use, and easier maintenance. Here’s a step-by-step guide on how to undertake this conversion.
Step 1 Gather Necessary Parts and Tools
Before diving into the conversion, it’s important to gather all the necessary components. You’ll need disc brake rotors, calipers, brake pads, a master cylinder (if the current one is not compatible), brake lines, and mounting hardware. Basic tools like wrenches, a jack, and safety stands are essential for this task.
Step 2 Remove the Old Drum Brakes
Start by lifting the vehicle and removing the wheels. Next, take off the brake drums. This usually involves removing the retaining clips and the brake shoes. Be cautious as the springs can be under tension. Once the drums are off, inspect the rear axle components for wear or damage before proceeding.
Step 3 Install the New Components
Begin installing the new disc brake setup. Attach the brackets designed to hold the calipers to the axle housing. Ensure that they are securely mounted and aligned properly. Next, place the new rotors on the axle hubs. Make sure they are seated correctly and check for any potential interference with suspension components.
Step 4 Mount the Calipers and Brake Lines
Once the rotors are in place, mount the brake calipers onto the brackets. Ensure that they are aligned with the rotors and can move freely. After securely fastening the calipers, connect the brake lines. Double-check all connections to prevent any leaks that could compromise braking performance.
Step 5 Upgrade the Master Cylinder
If your vehicle's master cylinder isn’t compatible with the disc brake system, you may need to replace it. A larger master cylinder provides the necessary hydraulic pressure to operate the disc brakes effectively. Bleed the brake system after installation to remove any air bubbles.
Step 6 Testing
After completing the installation, it’s crucial to test the brakes. Start by pressing the brake pedal to ensure it feels firm. Conduct a series of slow stops to bed in the new brake pads and check for any signs of unusual noise or vibration. Gradually increase speed and perform more rigorous stops to confirm that the system is performing optimally.
Conclusion
Converting from drum to disc brakes can significantly enhance your vehicle's braking performance and reliability. While the process requires some mechanical knowledge, it can be a rewarding project for DIY enthusiasts. With careful planning and execution, you can achieve a safer and more responsive braking system.