how to convert front drum brakes to disc brakes

How to Convert Front Drum Brakes to Disc Brakes

Converting front drum brakes to disc brakes is a popular upgrade among car enthusiasts and those looking to improve their vehicle's braking performance. This modification can lead to better stopping power, reduced brake fade, and improved overall handling. This guide outlines the steps necessary to make this conversion, providing helpful information for both novice and experienced mechanics.

Understanding the Benefits

Before diving into the conversion process, it's important to understand the advantages of disc brakes over drum brakes. Disc brakes tend to dissipate heat more effectively, reducing the risk of brake fade that can occur during heavy or prolonged braking. They also provide better stopping power due to their larger surface area and more effective clamping mechanism. Additionally, disc brakes are generally easier to inspect and maintain, making them a preferred option for many vehicles.

Tools and Materials Needed

Before starting the conversion, gather the necessary tools and materials

- A complete disc brake conversion kit (includes calipers, rotors, brackets, and hardware) - A jack and jack stands - A socket set and wrenches - A brake bleeding kit - Brake cleaner - New brake fluid - Pliers and screwdrivers - C-clamp or brake caliper tool - Torque wrench

Step-by-Step Conversion Process

1. Safety First Engage the parking brake and ensure that the vehicle is on a level surface. Loosen the lug nuts on the front wheels but do not remove them yet.

2. Lift the Vehicle Using a jack, raise the front of the vehicle and secure it on jack stands. Remove the front wheels.

3. Remove the Drum Brake Assembly Start by removing the wheel lug nuts and then take off the brake drum. Disconnect the brake lines from the wheel cylinder and remove the drum brake assembly, including shoes, springs, and hardware. Keep track of all components if you plan to reinstall them later.

4. Install the Disc Brake Bracket Follow the instructions provided with your conversion kit. Typically, you will need to install a mounting bracket that will secure the caliper to the spindle. Ensure the bracket is aligned correctly and tighten it to the specified torque.

5. Mount the Disc Rotor Place the new disc rotor onto the hub. Make sure it sits flush against the hub to avoid any wobbling while driving. Secure the rotor using the provided hardware from the conversion kit.

6. Install the Caliper Fit the caliper over the rotor and attach it to the previously installed bracket. Make sure to use new brake pads in the caliper, and ensure they are properly seated against the rotor. Tighten the caliper bolts to the manufacturer's specifications.

7. Connect Brake Lines If your kit includes new brake lines, replace the existing drum brake lines with the new ones. Be sure to use Teflon tape or thread sealant to prevent leaks at the connections.

8. Bleed the Brakes With the new setup in place, you'll need to bleed the brakes to remove any air from the system. Start with the brake furthest from the master cylinder and work your way closer. Add new brake fluid to the reservoir as necessary.

9. Reinstall Wheels and Lower the Vehicle Once the brakes are bled and functioning correctly, put the wheels back on, ensuring the lug nuts are tightened evenly. Lower the vehicle back to the ground and torque the lug nuts to the manufacturer's specifications.

10. Test the Brakes Before driving, pump the brake pedal a few times to seat the pads against the rotor. Perform a short test drive in a safe area to ensure everything is working correctly. Check for any unusual noises or vibrations.

Conclusion

Converting front drum brakes to disc brakes can significantly enhance your vehicle's performance and safety. While the process may seem daunting, it can be completed with the right tools, materials, and patience. Always refer to the specific instructions provided with your conversion kit, as different vehicles may have unique requirements. If you're unsure about any part of the process, consulting with a professional mechanic is advised. Enjoy your improved braking performance!