A Step-by-Step Guide to Replacing Rear Drum Brakes on Your Vehicle

How to Do Rear Drum Brakes A Step-by-Step Guide

Rear drum brakes are a common type of braking system used in many vehicles. Although they may not be as prevalent as disc brakes in modern cars, understanding how to service and replace them can be invaluable for any car enthusiast or DIY auto repair person. This guide will walk you through the necessary steps to inspect, service, and replace rear drum brakes.

Tools and Materials Needed

Before getting started, make sure you have the following tools and materials at hand

- Jack and jack stands - Lug wrench - Brake drum puller (if necessary) - New brake shoes - Brake cleaner - Socket set and wrenches - Screwdrivers (flathead and Phillips) - Torque wrench - Drum brake adjusting tool (optional) - Brake grease - Work gloves and safety goggles

Safety First

Before working on your vehicle, always ensure it is parked on a flat surface. Engage the parking brake and wear safety goggles and gloves for protection. Make sure to work in a well-ventilated area, especially if you are using brake cleaner.

Step 1 Remove the Wheel

Using a lug wrench, loosen the lug nuts on the rear wheel of the vehicle. Once loosened, lift the vehicle with a jack and secure it on jack stands. Completely remove the lug nuts and take off the wheel to expose the brake drum.

Step 2 Inspect the Brake Drum

Before proceeding to remove the drum, inspect its condition. Look for excessive wear, scoring, or cracks. If you notice any damage, it’s advisable to replace the brake drum. If the drum appears to be in good condition, proceed with the removal.

Step 3 Remove the Brake Drum

If the brake drum is stuck, you may need to use a brake drum puller. Attach the puller to the drum and follow the manufacturer’s instructions to safely remove it. If the drum comes off easily, set it aside and inspect the brake assembly.

Once the drum is removed, take a close look at the brake shoes and associated hardware. Look for signs of wear or damage, such as fraying or cracking of the brake shoes. Check the wheel cylinder for leaks and inspect springs and other hardware for corrosion or breakage.

Step 5 Remove Old Brake Shoes

To remove the old brake shoes, detach the springs and clips using your screwdriver or pliers. Take note of how the shoes are installed, as you will need to replicate this during reassembly. Carefully remove the shoes and examine the backing plate for any rust or damage that might need addressing.

Step 6 Install New Brake Shoes

Before installing the new brake shoes, clean the backing plate with brake cleaner. Apply a thin layer of brake grease to the areas where the shoes make contact with the backing plate to reduce noise and improve performance. Now, install the new shoes in the same configuration as the old ones, attaching the springs and clips securely.

Step 7 Adjust the Brake Shoes

Using a drum brake adjusting tool, adjust the shoes so they are snug against the drum, but not overly tight. This will allow for proper brake function without dragging. You may need to spin the drum to ensure it rotates freely.

Step 8 Reinstall the Brake Drum

Once the shoes are adjusted, carefully reinstall the brake drum over the new shoes. Ensure that it is seated properly and spins freely without binding.

Step 9 Reattach the Wheel

Place the wheel back onto the vehicle and hand-tighten the lug nuts. Once the vehicle is lowered from the jack stands, use the torque wrench to tighten the lug nuts to the manufacturer’s specifications.

Step 10 Test the Brakes

Before taking the vehicle on the road, press the brake pedal a few times to ensure the shoes are properly seated against the drum. Perform a brief test drive in a safe area to confirm that the brakes are functioning correctly.

Conclusion

Performing a rear drum brake service is a manageable task for anyone with a bit of mechanical knack. With the right tools and a step-by-step approach, you can save money on repairs and maintain your vehicle in top condition. Don’t forget to periodically check your brakes, as they are a critical safety component of your vehicle. Safe driving!