How to Change Brake Drums to Discs A Comprehensive Guide

Upgrading from brake drums to disc brakes is a common modification for automotive enthusiasts who seek to improve their vehicle's braking performance. Disc brakes offer better heat dissipation, more consistent braking power, and reduced brake fade, making them a worthy investment. This article will guide you through the process of changing brake drums to discs, outlining the necessary tools, parts, and step-by-step procedures.

Understanding the Difference Between Drum and Disc Brakes

Before we delve into the conversion process, it's essential to understand the fundamental differences between brake drums and disc brakes. Drum brakes consist of a cylindrical drum that rotates with the wheel. Inside the drum, brake shoes are pressed against the drum's inner surface to create friction and slow down the vehicle. In contrast, disc brakes employ a flat disc (rotor) that is clamped by calipers containing brake pads. This design allows for quicker heat dissipation and generally provides better stopping power.

Tools and Parts Required

Tools 1. Jack and jack stands 2. Lug wrench 3. Socket set 4. C-clamp or brake caliper tool 5. Screwdrivers (flathead and Phillips) 6. Pliers 7. Torque wrench 8. Brake cleaner 9. Shop towels

Parts 1. Disc brake conversion kit (includes rotors, calipers, mounting brackets, and all necessary hardware) 2. New brake pads 3. Brake fluid 4. Anti-seize lubricant

Step-by-Step Guide to Converting Brake Drums to Discs

Step 1 Preparation

1. Safety First Make sure your vehicle is parked on a flat surface with the engine off. Engage the parking brake and wear safety goggles throughout the process. 2. Loosen Lug Nuts Use the lug wrench to loosen the lug nuts on the wheel that you will be working on, but do not remove them just yet.

Step 2 Remove the Wheel

1. Lift the Vehicle Using a jack, lift the vehicle off the ground and secure it with jack stands. This ensures safety while working underneath.

2. Remove the Wheel Fully remove the lug nuts and take off the wheel to access the brake assembly.

Step 3 Remove the Drum Brakes

1. Remove Brake Drum If the brake drum is stuck, gently tap it with a rubber mallet to loosen it. Once free, pull it off the hub.

2. Disconnect Brake Components Unbolt and remove the brake shoes, springs, and any associated hardware. Remember to take photographs or notes during this process to ensure proper reassembly.

1. Install the New Mounting Brackets Follow the instructions provided in your disc brake conversion kit to install the new mounting brackets onto the axle housing.

2. Attach the Rotors Slide the new rotors onto the axle, ensuring they are seated correctly against the hub.

3. Install Calipers Attach the new calipers onto the mounting brackets. Make sure to route any brake lines correctly, avoiding any pinch points or contact with moving parts.

Step 5 Install Brake Pads

1. Insert New Brake Pads Place the new brake pads into the calipers according to the manufacturer’s instructions. Push the caliper pistons back using a C-clamp or brake caliper tool to create space for the new pads.

2. Secure the Calipers Tighten the bolts that hold the caliper in place, ensuring they are torqued to the manufacturer’s specifications.

Step 6 Reassemble and Test

1. Reinstall the Wheel Put the wheel back on the hub and hand-tighten the lug nuts.

2. Lower the Vehicle Remove the jack stands and carefully lower the vehicle back to the ground.

3. Torque the Lug Nuts Once on the ground, use the torque wrench to tighten the lug nuts to the specified torque settings.

4. Bleed the Brakes To remove any air from the brake lines, bleed the brakes according to the manufacturer's instructions, adding brake fluid as necessary.

5. Test Drive Before fully relying on your new disc brakes, take the car for a cautious test drive, gradually applying the brakes to ensure everything is functioning correctly.

Conclusion

Converting from brake drums to disc brakes can significantly enhance your vehicle's braking capacity and overall safety. While the process might seem daunting at first, with the right tools, parts, and a little patience, it can be a rewarding DIY project. Always remember that safety is paramount; if you're uncertain at any stage of the conversion, seek the assistance of a professional mechanic. Happy motoring!