how to convert rear drum to disc brakes

How to Convert Rear Drum Brakes to Disc Brakes

Upgrading your vehicle's braking system can enhance its performance and safety. While many modern cars come equipped with disc brakes, older models often rely on drum brakes, especially in the rear. Converting from rear drum brakes to disc brakes can significantly improve braking efficiency, reduce brake fade, and enhance overall driving experiences, especially in high-performance situations. This article will guide you through the process of converting your rear drum brakes to disc brakes.

Why Upgrade to Disc Brakes?

Disc brakes are preferred for numerous reasons 1. Improved Heat Dissipation Disc brakes dissipate heat more effectively than drum brakes due to their open design, reducing the likelihood of brake fade during heavy use. 2. Consistent Performance Disc brakes provide superior stopping power, particularly in wet conditions. They tend to perform better over time, maintaining their effectiveness even after prolonged use. 3. Easier Maintenance Inspecting and servicing disc brakes is generally more straightforward than drum brakes.

Tools and Materials Needed

Before starting the conversion, gather the following tools and materials - Socket set and wrenches - Jack and jack stands - Brake cleaner - New disc brake kit (including rotors, calipers, and pads) - Brake lines (if required) - Brake fluid - Torque wrench - Line wrenches - Brake grease

Make sure to check your vehicle-specific service manual for any additional tools you may need.

1. Preparation Park the vehicle on a flat surface, engage the parking brake, and loosen the lug nuts on the rear wheels. Raise the vehicle with a jack and secure it on jack stands.

2. Remove Rear Wheels Completely remove the lug nuts and take off the rear wheels to access the brake assembly.

3. Detaching Drum Brakes Remove the drum brake assembly by disconnecting the retaining screws and various components, including the brake shoes, springs, and wheel cylinders. Keep these parts organized, as some may be useful for reference or reinstallation.

4. Install New Disc Brake Components - Mounting Bracket Install the new mounting brackets for the disc brakes on the rear axle housing. Ensure they are secured according to the torque specifications provided in your vehicle’s service manual. - Calipers Attach the brake calipers to the mounting brackets. Make sure they align correctly with the rotors. - Rotors Slip the new brake rotors onto the hub. Check to ensure they are secured and spin freely without obstruction.

5. Brake Lines You may need to upgrade or modify the brake lines to accommodate the new calipers. If the original lines can’t be reused, replace them with new lines compatible with your disc brake setup.

6. Connect & Bleed Brake System Attach the brake lines to the calipers and ensure everything is tight. Next, fill the brake fluid reservoir and bleed the brake lines to remove any air pockets. This step is crucial for maintaining effective braking performance.

7. Reinstall Wheels and Lower the Vehicle Put the rear wheels back onto the vehicle and tighten the lug nuts in a crisscross pattern to ensure even pressure. Lower the vehicle from the jack stands.

8. Final Checks Before taking your vehicle on the road, perform a thorough inspection. Ensure all bolts are tightened, brake lines are secure, and there are no fluid leaks. Test the brake pedal feel before driving.

Conclusion

Converting rear drum brakes to disc brakes can significantly improve your vehicle's braking performance, offering a better driving experience overall. While the conversion process requires some mechanical skills and tools, following the steps outlined above will guide you through. Always consult your vehicle’s service manual and consider seeking professional assistance if you are unsure at any stage. With diligent preparation and attention to detail, you can enjoy the benefits of enhanced braking performance on your vehicle.