Tips for Replacing Your Rear Drum Brakes Effectively and Safely

Changing Rear Drum Brakes A Comprehensive Guide

Changing rear drum brakes might seem like a daunting task, but with the right information and tools, it can be a straightforward and rewarding DIY project. Drum brakes are commonly found in older vehicles and some modern models, especially in the rear. Understanding how they work and the steps involved in replacing them can save you both time and money.

Understanding Drum Brakes

Drum brakes consist of several key components the drum itself, brake shoes, a wheel cylinder, and various springs and retainers. When the brake pedal is pressed, hydraulic pressure pushes the wheel cylinder outward, forcing the brake shoes against the inner surface of the drum. This friction slows down the vehicle. Over time, these components wear out due to heat and friction, necessitating replacement.

Signs of Worn Drum Brakes

Before you dive into the replacement process, it’s crucial to identify signs that your drum brakes need attention

1. Squeaking or Squealing Noise This could indicate that the brake shoes are wearing thin. 2. Grinding Noise If you hear a grinding sound, this suggests that the brake shoes have worn down to the metal, which can damage the drum. 3. Pulling to One Side If your vehicle pulls to one side while braking, it could mean that the brake shoes are unevenly worn. 4. Warning Light Some modern vehicles come equipped with a warning light on the dashboard that indicates brake wear.

To replace drum brakes, you’ll need a few essential tools

- Socket and ratchet set - Brake cleaner - Jack and jack stands - Screwdrivers (flat and Phillips) - Pliers - Torque wrench - Replacement drum brake shoes - New drum (if needed) - Brake grease

Step-by-Step Guide to Changing Rear Drum Brakes

Step 1 Safety First Start by ensuring your vehicle is parked on a flat surface. Engage the parking brake to prevent any movement. Wear safety glasses and gloves for protection.

Step 2 Remove the Wheel Using a lug wrench, loosen the lug nuts slightly before lifting the vehicle with a jack. Once the vehicle is elevated, remove the lug nuts completely and set the wheel aside.

Step 3 Access the Brake Drum Locate the brake drum and identify if it has any retaining screws or clips. If so, remove them. Gently pull the drum off; it may require a bit of force if it's rusted or stuck.

Step 4 Inspect Components Once the drum is removed, check the condition of the brake shoes, springs, and the drum itself. If the drum is scored or too worn, it’s best to replace it.

Step 5 Remove and Replace the Brake Shoes Disconnect the springs and clips holding the brake shoes in place. Carefully remove the old shoes. Compare them with the new ones to ensure a proper fit. Install the new shoes by reversing the removal process.

Step 6 Reassemble the Brake Drum Once the new shoes are secured, apply brake grease to the contact points to reduce noise and wear. Reinstall the drum, ensuring it fits snugly over the shoes. If there were retaining clips or screws, reattach them.

Step 7 Reinstall the Wheel Position the wheel back onto the hub and hand-tighten the lug nuts. Lower the vehicle back to the ground and use a torque wrench to tighten the lug nuts to the manufacturer’s specifications.

Step 8 Test the Brakes Before you hit the road, pump the brake pedal a few times to ensure proper alignment and functionality. This step helps reset the brake shoes against the drum.

Conclusion

Changing rear drum brakes is an essential maintenance task that can extend the life of your vehicle's braking system. With the right tools and careful attention to detail, you can successfully replace your drum brakes and enjoy the satisfaction of doing it yourself. Always remember to consult your vehicle’s manual for specific instructions and safety precautions. Happy wrenching!