How to Replace Rear Brake Drums
Replacing the rear brake drums on your vehicle is an essential maintenance task that can improve your car's stopping power and ensure your safety on the road. Brake drums are part of the drum brake system, which utilizes friction between the brake shoes and the drum surface to slow or stop the vehicle. Over time, these drums can wear out, leading to decreased braking performance, noise, and even brake failure. In this article, we'll guide you through the steps to replace rear brake drums to help you maintain your vehicle's braking system effectively.
Tools and Materials Needed
Before you get started, it's important to gather the necessary tools and materials. Here’s what you will need
- Tools - Socket set and ratchet - Wrench set - Brake cleaner - Screwdriver - Torque wrench - Hammer - Jack and jack stands - Safety goggles - Gloves
- Materials - Replacement brake drums - New brake shoes (recommended) - Brake grease (high-temperature)
Safety First
Before you begin, make sure to park your vehicle on a flat surface and engage the parking brake. Wear your safety goggles and gloves to protect yourself from debris and sharp edges.
Step 1 Lift the Vehicle
Using a jack, raise the rear of the vehicle and secure it with jack stands. Make sure the vehicle is stable before proceeding. Remove the lug nuts from the rear wheels using a socket, and take the wheels off to access the brake components.
Step 2 Remove the Brake Drum
Once the wheels are off, locate the brake drums. There may be a retaining screw holding the drum in place. If so, remove it using a screwdriver. If the drum doesn’t budge, you may need to tap it gently with a hammer to loosen it. Be cautious not to damage the drum or brake components. Once loose, pull the drum off the hub.
Step 3 Inspect the Brake Components
With the drum removed, inspect the brake shoes, springs, and other components. Look for signs of wear, such as scoring on the drum surface, uneven wear on the shoes, or damaged springs. If you notice any significant wear, it's advisable to replace the shoes along with the drums. Clean any dust or debris using brake cleaner.
Step 4 Install New Brake Shoes (if needed)
If you are replacing the brake shoes, remove the old shoes by unhooking the springs and retaining clips. Compare the old shoes with the new ones to ensure proper fit. Install the new shoes by reversing the removal process, making sure to securely attach the springs and clips.
Step 5 Install the New Brake Drum
Before installing the new brake drum, apply a thin layer of brake grease to the areas where the drum contacts the shoes to prevent squeaking and ensure smooth operation. Carefully slide the new brake drum onto the wheel hub. Make sure it fits snugly and spins freely, without any obstructions.
Step 6 Reinstall the Wheel
Once the drum is in place, reinstall the wheel onto the hub, securing it with the lug nuts. Make sure to tighten the nuts by hand initially.
Step 7 Lower the Vehicle
Carefully lower the vehicle off the jack stands using the jack. Once the vehicle is back on the ground, use a torque wrench to tighten the lug nuts to the manufacturer’s specifications in a crisscross pattern to ensure even tightening.
Step 8 Test the Brakes
Before taking your vehicle back on the road, it’s crucial to test the brakes. Pump the brake pedal a few times to seat the new shoes against the drum. Check for any unusual noises or issues. It’s advisable to take a short, cautious drive to ensure everything is functioning correctly.
Conclusion
Replacing rear brake drums is a manageable task for those with a little mechanical skill and the right tools. Regular maintenance of your braking system will not only extend its life but also ensure your safety on the road. If you are ever unsure about any step of the process, don’t hesitate to consult a professional mechanic. Happy driving!