How to Switch Drum Brakes to Disc Brakes A Comprehensive Guide
Upgrading from drum brakes to disc brakes can significantly enhance your vehicle's stopping power and handling. While drum brakes are traditional and have served well over the decades, disc brakes offer superior performance, especially in terms of heat dissipation and maintenance. If you’re considering making this upgrade, you’re not alone; many automotive enthusiasts and everyday drivers are turning towards disc brakes for improved safety and efficiency. This article will guide you through the process of switching from drum brakes to disc brakes.
Understanding the Differences
Before diving into the conversion process, it's crucial to understand the differences between drum and disc brakes. Drum brakes operate by pushing brake shoes against the inside of a drum, generating friction to slow down the vehicle. While they are effective, they tend to overheat during extended use, which can lead to brake fade and reduced performance. On the other hand, disc brakes consist of a rotor and calipers; the calipers squeeze brake pads against the rotor to create friction. This design allows for better cooling and more reliable performance under stressful conditions.
Benefits of Converting to Disc Brakes
1. Improved Stopping Power Disc brakes generally provide better stopping power, especially in high-performance situations or during emergency braking.
2. Enhanced Heat Dissipation The open design of disc brakes allows heat to escape more effectively, reducing the risk of brake fade.
3. Easier Maintenance Disc brakes are typically easier to inspect and replace compared to drum brakes, making maintenance more straightforward.
4. Aesthetic Appeal Many enthusiasts find disc brakes to be visually appealing, providing a sportier look to the wheel well.
Tools and Materials Needed
Before starting the conversion, ensure you have the following tools and materials
- Disc brake conversion kit (includes rotors, calipers, and brackets) - Brake lines - Brake fluid - Socket set and wrenches - Jack and jack stands - Torque wrench - Brake cleaner - Safety glasses and gloves
Step-by-Step Guide to Conversion
Step 1 Preparation
Begin by gathering all necessary tools and materials. Ensure your vehicle is parked on a level surface and engage the parking brake. It’s advisable to consult your vehicle’s service manual for specific instructions and torque specifications.
Step 2 Remove the Wheels
Loosen the lug nuts on the front or rear wheels (depending on where you are converting the brakes) while the vehicle is still on the ground. Once loosened, use a jack to lift the vehicle and secure it with jack stands. Remove the wheels entirely to gain access to the drum brakes.
Step 3 Remove Drum Brakes
With the wheels off, locate the drum brakes. The next step is to remove the brake drums. This may require some hammering if they are stuck. Have a bucket handy to catch any brake fluid that may leak during the process. Once the drum is off, you will need to remove the brake shoes, springs, and other components.
Step 4 Install the Disc Brake Components
Refer to the conversion kit instructions to install the new disc brake components. Typically, this involves attaching the brake rotor to the hub, securing it with bolts, and then installing the calipers onto the rotor. Ensure that the calipers are aligned correctly and adjust them to the manufacturer’s specifications.
Step 5 Install New Brake Lines
Since drum brakes and disc brakes use different hydraulic systems, you will need to install new brake lines. Follow the conversion kit instructions closely to connect the lines securely. This is crucial to ensure proper brake function.
Step 6 Bleed the Brakes
Once everything is installed, it is time to bleed the brake system to remove any air pockets. Attach a brake bleeder kit to the bleeder valves on the calipers and pump the brakes according to the kit instructions, usually requiring a partner to help press the pedal while you open and close the valves.
Step 7 Test the System
Before driving, ensure everything is secured and check for any leaks. Reinstall the wheels, lower the vehicle, and torque the lug nuts to the specified settings. Start the vehicle and pump the brakes a few times, ensuring they feel firm before taking your first test drive.
Conclusion
Switching from drum brakes to disc brakes can be a rewarding project that enhances your vehicle's performance and safety. While the process requires some mechanical knowledge and tools, it can be accomplished by most DIY enthusiasts. Always prioritize safety, and consult professional resources if needed. With your new disc brakes installed, you’ll enjoy improved handling and stopping power on the road.