the ultimate guide on how to replace drum brakes

The Ultimate Guide to Replacing Drum Brakes

Drum brakes are a crucial component of many vehicles, providing the necessary force to stop the wheels from turning. Over time, these brakes can wear out, leading to reduced performance and safety issues. Replacing drum brakes may seem daunting, but with the right tools and guidance, it can be a straightforward process. This guide will walk you through everything you need to know about replacing drum brakes.

Understanding Drum Brakes

Drum brakes operate using friction to slow down the vehicle. When the driver presses the brake pedal, brake fluid travels to the wheel cylinder, pushing out the brake shoes against the inner surface of the drum. This action creates friction, which slows the wheel. Drum brakes are typically found on the rear wheels of many vehicles, although some older models use them on the front as well.

Signs You Need to Replace Drum Brakes

Before diving into the replacement process, it is essential to recognize when your drum brakes need to be changed. Here are some common indicators

1. Squeaking or Grinding Noises If you hear any unusual sounds when braking, it may be a sign that the brake shoes are worn out. 2. Decreased Performance If you notice a longer stopping distance or soft brake pedal feel, it’s time to inspect the brakes.

3. Vibration When Braking A pulsating brake pedal can indicate that the drum is warped or unevenly worn.

4. Visible Wear Remove the drum and inspect the brake shoes for noticeable wear or damage, including cracking or severe wear on the friction material.

Tools and Materials Needed

Before starting, gather the necessary tools and materials

- Jack and jack stands - Lug wrench - Brake cleaner - Brake shoe kit (brake shoes, springs, etc.) - Drum brake hardware kit - Torque wrench - Safety glasses and gloves

Step-by-Step Replacement Process

Step 1 Prepare the Vehicle

1. Park on a Flat Surface Ensure your vehicle is parked on a flat surface for safety. 2. Loosen Lug Nuts Before lifting the vehicle, slightly loosen the lug nuts on the rear wheels with a lug wrench.

Step 2 Lift the Vehicle

1. Jack Up the Vehicle Use a jack to lift the rear of the vehicle, and place jack stands for added safety. 2. Remove the Wheels Once the car is secure, remove the lug nuts completely and take off the wheels.

Step 3 Remove the Drum

1. Inspect the Drum Look for retaining screws or clips. Remove these if applicable. 2. Take Off the Drum Gently tap the drum with a rubber mallet to loosen it if it’s stuck. Slide the drum off and inspect the brake assembly.

Step 4 Replace the Brake Shoes

1. Remove Old Brake Shoes Unhook the springs and disconnect the brake shoes from the backing plate. Take note of the arrangement for reassembly. 2. Install New Brake Shoes Attach the new brake shoes to the backing plate in the same configuration as the old ones. Be sure to properly secure the springs.

Step 5 Reassemble and Adjust

1. Reinstall the Drum Slide the drum back onto the wheel hub, ensuring it fits snugly over the new brake shoes. 2. Reconnect the Wheel Place the wheel back on and hand-tighten the lug nuts.

Step 6 Lower the Vehicle and Test Brakes

1. Lower the Vehicle Remove the jack stands and carefully lower your vehicle back to the ground. 2. Tighten Lug Nuts With the vehicle securely on the ground, use a torque wrench to tighten the lug nuts to the manufacturer's specifications.

3. Pump the Brakes Before driving, pump the brake pedal a few times to seat the new shoes.

4. Test Drive Take a short test drive to ensure everything is functioning correctly. Listen for any unusual noises and check the brake feel.

Conclusion

Replacing drum brakes is a manageable task for those willing to roll up their sleeves and get hands-on. Following the right steps and precautions will not only ensure your vehicle stops safely but will also save you money on labor costs. Remember, if you feel uncomfortable at any point in the process, don’t hesitate to seek professional help. Your safety on the road is paramount!