Converting Brake Drums to Rear Discs A Comprehensive Guide

Upgrading your vehicle’s braking system can significantly improve safety and performance, particularly when it comes to converting rear brake drums to disc brakes. This modification not only enhances stopping power but also offers better heat dissipation, more consistent performance, and reduced maintenance over time. In this article, we’ll explore the benefits of this conversion and provide a general overview of the process involved.

Why Convert Drum Brakes to Disc Brakes?

1. Improved Stopping Power Disc brakes offer superior stopping power compared to drum brakes. The design of disc brakes allows for more surface area and better heat dissipation, which can result in shorter stopping distances, especially under heavy braking conditions.

2. Better Heat Management Brake drums can overheat during extended use, which can lead to brake fade and reduced performance. Disc brakes provide better ventilation and cooling, which maintains consistent performance during demanding driving situations.

3. Reduced Maintenance Drum brakes can accumulate dust and debris, leading to increased wear and maintenance needs. Discs, on the other hand, typically experience less buildup, making them easier to maintain and inspect.

4. Performance in Wet Conditions Disc brakes generally perform better in wet conditions. Water can accumulate in drum brakes, leading to reduced braking efficiency. Discs dry out more quickly after wet conditions, maintaining optimal performance.

Conversion Process

Converting from drum brakes to disc brakes can seem daunting at first, but with the right tools and knowledge, many vehicle enthusiasts can undertake this project themselves. Here’s a step-by-step guide to help you through the conversion process. Always refer to your vehicle’s service manual for specific details pertaining to your model.

Step 1 Gather Necessary Parts

You’ll need the following components for the conversion - Rear disc brake conversion kit (often includes rotors, calipers, mounting brackets, and necessary hardware) - New brake lines (if required) - Brake fluid - Basic tools (wrenches, screwdrivers, jack, stands)

Step 2 Prepare the Vehicle

Step 3 Remove Old Drum Brakes

While wearing safety glasses and gloves, remove the brake drum by unscrewing the retaining screws (if present) and sliding the drum off the hub. Disconnect the brake lines and remove the brake shoes and associated hardware.

Step 4 Install the Conversion Kit

Follow the instructions provided with your rear disc brake conversion kit. Typically, this will involve - Installing the new mounting brackets onto the axle. - Attaching the new brake calipers and aligning them with the rotor. - Positioning the rotors over the hub and securing them according to the kit instructions.

Step 5 Connect Brake Lines and Calipers

If your conversion requires new brake lines, replace them with the ones provided in your kit. Attach the new brake calipers and ensure that all components are tightened securely. Make sure there are no leaks in the brake lines.

Step 6 Bleed the Brakes

Once everything is assembled, it’s crucial to bleed the brake system to remove air bubbles. Start from the furthest wheel from the master cylinder and work your way up. This step is vital to ensure proper brake function.

Step 7 Test Drive

Before hitting the road, it’s wise to conduct a thorough inspection. Check for any loose components and ensure everything is secure. A short test drive in a safe area will help you assess the effectiveness of your new braking system. Gradually test the braking under different conditions to familiarize yourself with the new setup.

Conclusion

Converting rear drum brakes to disc brakes is a rewarding upgrade that enhances your vehicle's overall performance and safety. While the process requires some mechanical skill and patience, the long-term benefits of improved braking efficiency and reduced maintenance make it worthwhile. Always ensure you are following safety protocols and guidelines during the conversion process, and when in doubt, consult with a professional mechanic. Enjoy the enhanced ride and the peace of mind that comes with upgraded brakes!