replace rear drum brake shoes

How to Replace Rear Drum Brake Shoes A Comprehensive Guide

When it comes to vehicle maintenance, the braking system is arguably the most critical. While most drivers might be familiar with disc brakes, many vehicles—particularly older models and some trucks—still utilize rear drum brakes. Replacing rear drum brake shoes is an essential skill for any DIY mechanic and can save you both time and money if you can do it yourself. In this article, we'll take a step-by-step look at how to replace rear drum brake shoes.

Understanding Drum Brakes

Before diving into the replacement process, it’s important to understand how drum brakes work. Drum brakes use a set of brake shoes that press against a spinning drum to create friction. This system is generally effective for stopping the vehicle but can wear out over time. Signs that your brake shoes might need replacing include squeaking or grinding noises, reduced braking efficiency, or a soft brake pedal.

Tools and Materials Required

To replace rear drum brake shoes, you will need - A jack and jack stands - A lug wrench - A drum brake tool kit (including a spring compressor) - Brake cleaner - New brake shoes - A rubber mallet - Screwdrivers (flathead and Philips) - A torque wrench

Step-by-Step Replacement Process

1. Preparation Ensure your vehicle is parked on a flat surface, and engage the parking brake. This will prevent it from rolling. Gather all your tools and materials.

2. Remove the Wheel Use a lug wrench to loosen and remove the lug nuts. Once the lug nuts are off, lift the vehicle with a jack and secure it on jack stands. Remove the wheel to expose the brake drum.

3. Inspect the Brake Drum Before proceeding, inspect the brake drum for grooves, cracks, or other signs of wear. If it’s damaged, you may need to replace or resurface it.

4. Remove the Brake Drum If the drum is stuck, gently tap around the edges with a rubber mallet to dislodge it. Be careful not to damage the drum. Once freed, pull it off to reveal the brake assembly.

5. Remove Old Brake Shoes Using the brake tool kit, remove the springs and clips that hold the brake shoes in place. Carefully take off the shoes, noting how they are positioned for easy reinstallation later.

6. Clean the Assembly Spray brake cleaner onto the brake assembly to remove dust and debris. This is a good time to inspect the wheel cylinder for leaks. If you find any, it will need replacement.

7. Install New Brake Shoes Follow the configuration noted earlier to install the new brake shoes. Start by attaching the primary shoe (the one with the shorter lining) and then the secondary shoe. Ensure the springs and clips are securely in place, using the spring compressor if necessary.

8. Reattach the Brake Drum Once the shoes are installed, place the brake drum back onto the assembly. Ensure it spins freely. If it feels tight, double-check the shoe alignment and spring tension.

9. Reinstall the Wheel Put the wheel back onto the hub and hand-tighten the lug nuts. Lower the vehicle and tighten the lug nuts in a crisscross pattern to ensure even pressure.

10. Testing Before hitting the road, pump the brake pedal a few times to seat the shoes properly against the drum. Conduct a test drive, starting at low speeds to ensure everything is functioning correctly.

Conclusion

Replacing rear drum brake shoes is a manageable task for those willing to take the time and effort. Regular maintenance will not only prolong the life of your brake system but also ensure your safety on the road. If you ever feel unsure during the process, don’t hesitate to consult a professional. Remember, a well-functioning brake system is crucial for your vehicle’s performance and your personal safety. Happy wrenching!