How to Remove Drum Brakes in a Car?

[BraxtonDella]

The method for removing drum brakes in a car is: 1. Before disassembly, use a screwdriver to press the wedge upward through the wheel's bolt hole to retract the brake shoes; 2. Use the VW6372 special tool to remove the hub cover, pull out the cotter pin, and remove the crown nut lock ring; 3. Remove the wheel bearing preload adjustment nut, washer, and bearing, then take off the brake drum. Drum brakes consist of the brake base plate, brake wheel cylinder, brake shoes, related connecting rods, springs, pins, and the brake drum, and are commonly used on rear wheels. The drum brake assembly includes rotating parts, fixed parts, actuating parts, and positioning adjustment devices.

[LoganMarie]

I've disassembled drum brakes several times myself, and here's the detailed procedure. First, park the vehicle on level ground, shift to neutral, engage the parking brake, loosen the wheel bolts, and then lift the vehicle with a jack—remember to use jack stands for stability. After removing the wheel, you'll see the brake drum. If the drum is stuck, don't worry; locate the inspection hole at the back and use a flathead screwdriver to turn the adjuster gear, retracting the brake shoes. Once the drum is off, pay attention to the position of the automatic adjuster lever—it's best to take a photo for reference. Use special pliers to remove the front and rear springs, and needle-nose pliers to remove the retaining clips from the pins before extracting the pins. Check the wheel cylinder for any leaks and clean all components with brake cleaner. During reassembly, install the adjuster mechanism first, followed by the brake shoes, making sure the spring hooks are oriented correctly. Finally, after reinstalling the brake drum, repeatedly press the brake pedal to test and ensure the braking force is restored before driving. The entire process takes about two hours, and beginners are advised to seek help from someone experienced.

[Chad]

Drum brake removal requires patience. After preparing tools like a Phillips screwdriver, needle-nose pliers, and spring pliers, first loosen the wheel nuts with a torque wrench, then lift the vehicle with a hydraulic jack—always remember to place safety stands. Once the wheel is removed, the brake drum will be visible; if it's rusted and stuck, screw two long bolts into the wheel hub's bolt holes to push it out. When removing the retaining springs, press the center retaining pin to pull them out, and use spring pliers to twist off the return springs. After removing the brake shoes, check their thickness—replace them if they're less than 2mm. When installing new brake shoes, apply some high-temperature lubricant to the adjuster arm and locating pins to prevent noise. Be careful not to lose small parts during assembly—I almost lost a spring clip last time. After installation, rotate the tire to check for rubbing, and during the road test, pump the brakes a few times to let the clearance self-adjust.

[Jeff]

The most critical aspect of drum brake disassembly is the safety procedure. First, park the vehicle on a hard, level surface, engage first gear, and firmly apply the parking brake. When removing the wheel, loosen the lug nuts in a diagonal pattern to prevent warping. Immediately after removing the brake drum, spray it with brake-specific cleaner to avoid inhaling asbestos dust. Exercise caution when disassembling the internal adjustment mechanism—use a screwdriver to pry open the retaining clip and remove the locating pin. Always secure large springs with a spring hook before removal to prevent sudden release and potential injury. Pay special attention to checking the shoe pin holes for step-like wear; replace the shoes if such wear is present. During reassembly, it's advisable to replace the adjuster arm spring simultaneously, as failure to do so may result in automatic adjustment failure. Finally, adjust the clearance precisely—the brake drum should rotate with slight resistance when turned by hand. If brake fluid leakage is observed from the wheel cylinder during operation, the entire repair kit must be replaced.

[LaCaleb]

Here's a simplified drum brake disassembly and installation process I've summarized: Remove the tire - Take off the brake drum - Loosen the return spring - Remove the retaining pins - Extract the brake shoes. For tools, besides standard wrenches, a rubber mallet and brake pliers are essential. If encountering a rust-seized brake drum, avoid forceful prying—apply rust penetrant at the seams and gently tap the edges with the rubber mallet. When removing the adjuster, count the number of gear turns carefully for accurate reassembly. When installing new brake shoes, pay attention to left/right orientation and apply special anti-seize compound on contact bosses. Using pliers to install the main spring is ten times safer than bare hands. Post-assembly debugging is crucial: Pull the handbrake to listen for clicking sounds indicating proper self-adjuster operation—after three empty brake pedal pumps, the clearance should automatically adjust. Don't forget to lubricate guide pins with grease, otherwise noise issues may reappear within days.

[FranciscoRose]

As someone who frequently maintains drum brakes, I have some practical tips. For tools, I recommend using the fork-shaped spring pliers and wheel cylinder pusher from a professional disassembly kit. Before disassembly, it's safest to record a video of the component positions, paying special attention to the orientation of the shoe locating pin slots. After removing the old shoes, clean the flange steps on the backing plate and sand them to prevent new shoe sticking. A handy trick during installation is to first fit the shoes and then attach the springs: pushing them flat into the grooves can save 30% effort. Remember to adjust the brake shoe clearance to about 1mm, otherwise the braking distance may increase after installation. The testing method is to reinstall the tire without tightening the bolts, then rotate the hub and listen for even rustling sounds. After completion, pump the brake pedal multiple times until it firms up, indicating complete air bleeding. It's best to perform an emergency brake test at this stage to confirm effectiveness.