changing rear drum brake pads

Changing Rear Drum Brake Pads A Comprehensive Guide

Brake pads play a pivotal role in ensuring the safety and performance of your vehicle. While most drivers are familiar with disc brakes, rear drum brakes are quite common, especially in older automobiles and certain types of vehicles. Changing the rear drum brake pads may seem daunting, but with the right tools and knowledge, the process can be manageable. Whether you are a seasoned DIYer or a novice looking to save some money on repairs, this guide will walk you through the steps necessary to change rear drum brake pads effectively.

Understanding Drum Brakes

Drum brakes operate differently than disc brakes. In a drum brake system, the brake pads are located inside a drum that rotates with the wheel. When you apply the brakes, the brake shoes are pushed outward against the inside of the drum, creating friction that slows down the vehicle. Over time, the brake shoes wear down and must be replaced to maintain optimal braking performance.

Tools and Materials Needed

Before starting the process, gather the following tools and materials

1. Floor jack and jack stands 2. Lug wrench 3. Brake drum puller (if necessary) 4. Socket set and ratchet 5. Brake cleaner 6. Replacement brake pads (brake shoes) 7. Torque wrench 8. C-clamp 9. Gloves and safety glasses

Step-by-Step Guide

1. Preparation Lifting the Vehicle

Begin by safely lifting your vehicle with a floor jack. Once elevated, secure it with jack stands to ensure stability. Remove the rear wheels using a lug wrench, and set them aside.

2. Inspecting the Drum Brake Assembly

After removing the wheel, take a look at the drum brake assembly. Inspect the brake drum for signs of wear or damage. If the drum is grooved or significantly worn, it may need resurfacing or replacement as well.

3. Removing the Brake Drum

Some vehicles may require a brake drum puller to detach the drum. If the drum is stuck, gently tap it with a rubber mallet or use the puller. Once free, remove the drum, and examine the brake shoes attached inside.

4. Removing the Old Brake Shoes

Take note of how the old brake shoes are installed. It’s helpful to take a picture for reference later. Carefully detach the springs and retainers that hold the shoes in place, using pliers if necessary. Remove the old brake shoes and set them aside.

5. Installing New Brake Shoes

Before installing the new brake shoes, clean the drum's interior with brake cleaner. This removes dust and debris. Begin by placing the new brake shoes in the same configuration as the old ones. Reinstall the retaining springs and ensure everything is securely fastened.

6. Reattaching the Brake Drum

With the new brake shoes in place, slide the drum back onto the wheel hub. It should fit snugly but rotate freely. If necessary, put a little brake cleaner on the drum's surface to ensure the removal of oily residue.

7. Reinstalling the Wheel

After ensuring everything is assembled correctly, it is time to reinstall the wheel. Place the wheel back on the hub, tighten the lug nuts, and lower the vehicle from the jack stands.

8. Testing the Brakes

Before driving, pump the brakes several times to ensure the shoes are properly seated against the drum. It is crucial to test the brakes gently to ensure proper functionality and avoid any potential issues.

Conclusion

Changing rear drum brake pads is a straightforward process that can be completed with basic tools and a little patience. Regular maintenance of your vehicle's braking system is essential for safety and performance. If you feel uncomfortable performing this task, don’t hesitate to consult a professional mechanic. Remember, your brakes are one of the most critical components of your vehicle, and keeping them in top condition is vital for your and others’ safety on the road.