how to change drums to disc brakes

How to Change Drums to Disc Brakes A Step-by-Step Guide

Upgrading your vehicle’s braking system from drum brakes to disc brakes can significantly enhance performance, safety, and the overall driving experience. This transition can be particularly beneficial for those who drive in demanding conditions or are looking to improve their car's responsiveness. If you’re considering making this switch, here’s a comprehensive guide on how to change drums to disc brakes.

Understanding the Basics

Before diving into the conversion process, it is essential to understand the primary differences between drum and disc brakes. Drum brakes operate using brake shoes that press outward against a spinning drum, while disc brakes use calipers to squeeze brake pads against a metal disc (or rotor). Disc brakes typically offer better heat dissipation, more consistent performance, and reduced fade under heavy braking conditions.

Tools and Materials Needed

To successfully convert drum brakes to disc brakes, you will need

- New disc brake kit (including rotors, calipers, and pads) - Brake fluid - Wrenches and sockets (vary depending on your vehicle) - Jack and jack stands - C-clamp or brake caliper tool - Safety glasses - Brake cleaner - Torque wrench - Additional adapters (if required for your vehicle model)

Step-by-Step Process

1. Safety First

Before starting the conversion, ensure your vehicle is parked on a flat surface. Engage the parking brake to prevent any movements. It’s also advisable to wear safety glasses and gloves to protect yourself from any debris or brake dust.

2. Remove the Rear Wheel

Using a jack, lift the rear of your vehicle and place it on jack stands for safety. Remove the wheel nuts with a wrench, then take off the rear wheel to access the brake assembly.

3. Take Off the Drum Brake Assembly

With the wheel removed, locate the drum brake assembly. Begin by removing the drum itself; this may require you to unbolt it from the hub. Next, detach the brake shoes, springs, and any other related components like the backing plate if necessary.

4. Clean the Area

Once the drum assembly is removed, take the opportunity to clean the exposed components with brake cleaner. This step helps in prepping the area for the new disc brake assembly.

5. Install the Disc Brake Conversion Kit

Follow the instructions provided with your disc brake conversion kit carefully. Typically, this involves

- Attaching the new disc brake backing plate to the axle. - Mounting the new calipers onto the backing plate, ensuring they are positioned to allow the brake pads to contact the rotor properly. - Installing the rotors onto the wheel hub. Make sure they’re secured correctly.

6. Install Brake Pads

Slide the new brake pads into the calipers. Use a C-clamp or brake caliper tool to compress the caliper piston if needed, allowing more space for the pads.

7. Connect Brake Lines and Bleed the System

Once everything is in place, connect the brake lines to the new calipers. Ensure all connections are tight to prevent leaks. Afterward, you will need to bleed the brake system by adding new brake fluid. This process removes any air trapped in the lines, ensuring optimal brake performance.

To bleed the system, start at the caliper farthest from the master cylinder and work your way closer. Open the bleed valve, press the brake pedal, and watch for fluid flow, closing the valve once fluid emerges. Repeat until you have a firm pedal feel.

8. Reassemble and Test

After successfully installing the disc brake components, reattach the wheel and lower the vehicle back to the ground. Torque the wheel nuts to the manufacturer’s specifications.

Final Checks

Before hitting the road, conduct a thorough inspection of the brake system. Check for any leaks in the brake lines, ensure all components are securely attached, and confirm the brake pedal feels firm when pressed.

Conclusion

Changing from drum brakes to disc brakes is a rewarding upgrade that can greatly improve your vehicle’s stopping power and safety. By following the above steps and ensuring a meticulous installation, you’ll enjoy the benefits of enhanced braking performance in your vehicle. Always remember that if you’re unsure about any part of the process, consulting a professional mechanic is advisable to ensure safety and effectiveness. Happy driving!