how to change drum brakes into disc brakes

How to Change Drum Brakes into Disc Brakes A Comprehensive Guide

Upgrading your vehicle’s braking system from drum brakes to disc brakes is a project that can lead to improved braking performance, enhanced safety, and a modernized look. While it may seem daunting, with the right tools, knowledge, and patience, you can accomplish this significant automotive upgrade. This article will provide a step-by-step guide on how to change drum brakes into disc brakes, covering essential considerations, tools needed, and the overall process involved.

Why Upgrade to Disc Brakes?

Before diving into the detailed process, let's first examine why you might want to make this change. Disc brakes generally provide better stopping power, especially in high-performance and heavy-load scenarios. They dissipate heat more effectively, reducing the chances of brake fade, and are often easier to service compared to drum brakes. Additionally, disc brakes can improve aesthetics and may enhance vehicle resale value.

Tools and Materials Needed

Before starting your project, gather the following tools and materials

1. Tools - Socket set and wrenches - Screwdrivers (flathead and Phillips) - Brake cleaner - Pliers - Torque wrench - Jack and jack stands - C-clamp (for compressing calipers)

2. Materials - Disc brake conversion kit (specific to your vehicle make and model) - New rotors and brake pads - Brake fluid - New brake lines (if necessary) - Anti-seize compound

Step-by-Step Process

1. Preparation Begin by ensuring that your vehicle is parked on a level surface, engaging the parking brake. Gather all necessary tools and lay them out for easy access.

2. Lift the Vehicle Using a jack, lift your vehicle and secure it on jack stands. Remove the wheels to access the brake components.

3. Remove Drum Brakes - Take off the drum by removing the retaining screws and gently pulling it off. In some cases, you may need to adjust the brake shoes inward to enable drum removal. - Detach the brake lines and other mounting hardware connecting the drum to the vehicle.

4. Inspect Components Check the condition of the components you’ve just removed. If any parts are worn or damaged, replace them accordingly.

5. Install the Disc Brake Kit - Follow the instructions provided with your disc brake conversion kit to install the new brackets. This often involves positioning the caliper bracket onto the hub assembly and securing it with bolts. - Ensure that all components are aligned correctly and torqued to the manufacturer’s specifications.

6. Mount Rotors Install the new rotors onto the hub. Make sure they sit flush and are properly secured with any retaining bolts.

7. Attach Calipers Install the brake calipers over the rotors, ensuring that they clamp the rotors firmly when the brakes are engaged. Ensure that caliper bolts are appropriately torqued.

8. Connect Brake Lines If your conversion kit includes new brake lines, make sure to replace the old ones with the new ones from the kit. Ensure all fittings are tight to prevent leaks.

9. Install Brake Pads Place the new brake pads into the calipers, making sure they are seated correctly. If using a C-clamp, compress the caliper piston slightly to assist with pad installation.

10. Bleed the Brakes Once everything is installed, you’ll need to bleed the brake system to remove any air pockets. This can be done by having an assistant pump the brake pedal while you open and close the bleeder valves on the calipers.

11. Test the System Before driving the vehicle, pump the brakes a few times to ensure that the pads seat correctly against the rotors. Check for any leaks and ensure that the brakes feel firm.

12. Reinstall Wheels With everything in place, reattach the wheels and lower the vehicle back to the ground. Ensure that the lug nuts are torqued to the specifications.

Conclusion

Converting from drum brakes to disc brakes can enhance your vehicle's performance and safety. While the process can be labor-intensive, following this guide will provide you with the steps necessary to successfully complete the upgrade. Always consult with a professional mechanic if you feel unsure about any aspect of the conversion. Enjoy your improved braking system!