how to convert brake drum to disc brakes

How to Convert Brake Drum to Disc Brakes A Comprehensive Guide

When it comes to vehicle braking systems, nothing can beat the reliability and performance of disc brakes. Although many older cars and some budget models still employ drum brakes, upgrading to disc brakes can significantly enhance stopping power and overall safety. If you're considering converting your brake drum system to disc brakes, this guide will help you navigate through the process.

Understanding the Basics

Before diving into the conversion, it’s essential to understand the differences between drum and disc brakes. Drum brakes use a set of shoes that press against the inner surface of a spinning drum to create friction, while disc brakes utilize brake pads that clamp onto a rotating disc. The latter design generally offers better heat dissipation, improved stopping power, and reduced maintenance.

Assess the Vehicle Compatibility

The first step in converting from drum to disc brakes is to assess whether your vehicle can accommodate such an upgrade. While many vehicles can be modified, certain older models might have limitations due to available parts or design compatibility. Consult your vehicle’s service manual and research whether others have successfully made a similar conversion on your specific model.

Gather the Necessary Parts

Once you’ve confirmed compatibility, you will need to gather the necessary parts for the conversion. Typically, you'll require

1. Disc Brakes Purchase a complete disc brake kit that is designed for your specific vehicle make and model. Many aftermarket suppliers offer conversion kits. 2. Brake Calipers New calipers will be required to accommodate the disc brakes. 3. Brake Lines and Hoses New brake lines may be necessary, as the routing and fittings for hoses in drum systems differ from disk systems. 4. Mounting Brackets These may come with your disc brake kit; if not, they will need to be sourced based on your vehicle’s specifications. 5. Wheel Bearings Inspect the existing wheel bearings, and replace them if they show signs of wear.

1. Lift the Vehicle Use a jack to lift the front or rear of your vehicle, depending on which brakes you’re converting. Ensure it is securely positioned on jack stands. 2. Remove the Existing Drum Brakes Start by removing the wheel, followed by detaching the brake drum assembly. This may involve unbolting the backing plate and disconnecting the brake lines. 3. Install the New Brake Components Follow the instructions provided with your disc brake kit. Install the mounting brackets, then attach the calipers and disc rotors. Make sure to torque all bolts to the manufacturer’s specifications. 4. Connect New Brake Lines If your kit requires new brake lines, ensure they are installed correctly, checking for any bends or kinks that could cause pressure loss. 5. Finalize the Installation Once everything is in place, reinstall the wheels and lower the vehicle.

Bleeding the Brakes

After installation, it's crucial to bleed the brake system to remove any air trapped within the lines. This process ensures you have a firm brake pedal and optimal stopping performance. Follow a bleeding sequence—typically starting from the brake furthest from the master cylinder to the closest.

Testing Your New Brakes

Before hitting the road, it’s essential to conduct a thorough test. Start at a low speed in a safe area to check for responsiveness. Gradually increase your speed, testing the brakes under different conditions.

Conclusion

Converting brake drums to disc brakes is an excellent way to enhance your vehicle’s performance and safety. While the process requires some mechanical knowledge and tools, it can be a rewarding project. Always prioritize safety by consulting a professional if unsure about any step, and enjoy the improved handling and stopping power of your new braking system!