how to convert rear drums to disc brakes

How to Convert Rear Drums to Disc Brakes

Upgrading from rear drum brakes to disc brakes can enhance your vehicle's stopping power, improve pedal feel, and increase durability under aggressive driving conditions. This transformation, while beneficial, requires a good understanding of the components involved and the process of installation. Here’s a detailed guide to help you convert rear drums to disc brakes in your vehicle.

Understanding the Benefits

Before diving into the conversion process, let’s examine why many car enthusiasts choose to switch from drum brakes to disc brakes. Disc brakes generally provide better performance in terms of heat dissipation, reduced fade under hard braking, and consistent stopping power. They are also easier to inspect and maintain compared to drum brakes, which can be more complex due to their enclosed nature.

Required Tools and Components

To complete the conversion, you will need several tools and parts. Here’s a list

Tools - Jack and jack stands - Wrenches and sockets - Screwdrivers - Brake line flare tool - Brake fluid - Torque wrench

Parts - Rear disc brake conversion kit (including calipers, rotors, mounting brackets, and necessary hardware) - Brake lines and fittings - Parking brake cables (if required) - New brake pads

Conversion Process

1. Safety First Begin by ensuring the vehicle is parked on a flat surface. Use wheel chocks and disconnect the battery for safety.

2. Remove Rear Wheels Use the jack to lift the rear of the vehicle and securely place it on jack stands. Remove the rear wheels to access the brake components.

3. Disassemble Drum Brakes Remove the drum from the wheel hub. This may require removing the retaining screws or clips. Once the drum is off, disconnect the brake shoes, springs, and any associated hardware.

4. Remove the Axle Depending on your vehicle, you might need to detach the axle to install the new disc brake components. Follow your vehicle’s service manual for proper disassembly instructions.

5. Install Disc Brake Components - Mount the new brackets to the rear axle where the drums used to be. - Install the new rotors on the hubs, securing them as per the kit's guidelines. - Attach the calipers to the brackets, ensuring they’re properly aligned with the rotors.

6. Upgrade the Brake Lines Depending on your kit, you may need to replace the existing brake lines with those designed for disc brakes. Be sure to properly flare and connect the lines to avoid leaks.

7. Install Parking Brake Cables If your conversion kit includes new parking brake cables, install them now. Attach them to the calipers and adjust as necessary.

8. Reassemble and Bleed the Brakes Replace the rear wheels and lower the vehicle off the jack stands. Fill the brake master cylinder with fresh brake fluid and bleed the brakes to eliminate any air bubbles in the system.

9. Final Checks Once the brakes are bled, test the brake pedal feel. Ensure that everything is secured and check for leaks around connections.

10. Test Drive Carefully take the vehicle for a test drive in a safe area. Monitor braking performance and listen for any unusual noises.

Conclusion

Converting rear drum brakes to disc brakes can significantly improve your vehicle’s braking capabilities. While the process requires attention to detail and some mechanical knowledge, the benefits in performance and maintenance make it a worthwhile investment. Always refer to your vehicle's specific guidelines and consider consulting a professional mechanic if you're unsure about any step in the conversion process. Enjoy your enhanced driving experience with newfound confidence in your braking system!