How to Change Brake Shoes

Most automobiles were manufactured with rear drum brakes during the 20th century, and these braking systems use hydraulically operated shoes to apply friction to the interior of a drum, stopping the car. The shoe material can quickly wear out and require replacement at regular intervals. The average backyard mechanic can change a set of brake shoes in about 30 minutes.

Difficulty: Moderate

Instructions

Things You'll Need:

• Socket set
• Screwdrivers
• Floor jack
• Lug wrench
• Pedestal

Changing Brake Shoes

1. Lift the vehicle at the brake to be changed by placing the floor jack onto the frame rail and pumping it until the wheel is in the air. Place a pedestal under the frame as an extra safety measure in case the jack fails.

2. Remove the wheel by turning the lug nuts counterclockwise, then pull the wheel free of the hub. Set the wheel aside.

3. Pull the drum free of the hub, or turn the keeper screw counterclockwise in some models to release the drum. The keeper screw is normally an off-center bolt on the front of the drum, holding it to the hub. Some debris and dust is normal, excessive dust could indicate a lack of maintenance.

4. Remove the shoes by levering the long springs from the shoe hooks with a screwdriver, and then turning the primary spring bolt counterclockwise. Slide the shoe away from the brake assembly. This a good opportunity to replace the long springs and check the wheel cylinder for leaks.

5. Replace the shoes by sliding them onto the brake assembly, then turning the primary spring bolt clockwise. Attach the long springs onto the shoe hooks by levering them into position with the screwdriver or spring tool (notched screwdriver). Check the adjustment bolt at the bottom of the assembly for slippage.

6. Replace the drum by sliding it over the shoes and turning the keeper bolt clockwise, if applicable.

7. Bleed the brake by turning the purge nipple located on the back of the brake mount plate counterclockwise, then pressing the brake pedal while continuously filling the master cylinder. This could take two people, but it is possible with one person. When the fluid coming out is golden yellow and constant, turn the nipple clockwise to close it.

8. Replace the wheel and turn the lug nuts clockwise, in an alternating pattern.

9. Lower the vehicle from the floor jack by turning the pressure screw counterclockwise.

10. Repeat the entire procedure on all remaining brakes.

Tips & Warnings

• Resurface or replace the drum when changing brake shoes.
• Use extreme caution when working underneath a vehicle.

References

• How to Replace Rear Brake Shoes and Drums
• How To Fix Common Brake Problems