Brake Shoes
A brake shoe is a crescent-shaped, friction-lined brake part that is pushed outwards against the inner surface of the drum to slow the car down.
Prepared by the Bicops Technical Content Team · Last updated:
Shop Brake ShoesHow does a drum brake work?
In a disc system the pad squeezes from the outside; in a drum system the wheel cylinder pushes two shoes against the inner wall of the drum. Its enclosed design gives better protection against mud and water, and it works easily together with the handbrake. That is why many passenger cars still use it on the rear axle, as do light commercial vehicles.
Signs of wear
If the handbrake needs more travel than usual, you hear rubbing from the rear brakes, or the car leans to one side at the rear under braking, the shoes should be checked. Shoes are always replaced as a set per axle; during replacement, check the wheel cylinder for hydraulic leaks and whether the springs have fatigued.
Choosing shoes
Drum inner diameter and shoe width must match the car exactly; the loaded commercial version of the same model usually uses wider shoes. Going by the OEM number is the safest method. If the drum’s inner surface has gone oval, new shoes will not seat properly and brake response will arrive late.
Frequently Asked Questions
How many kilometres do brake shoes last?
Rear drum shoes carry low loads and last a long time; 80,000-120,000 km is common. That drops in cars where the handbrake is used often and harshly.
Does the drum have to be replaced with the shoes?
Only if the drum’s inner diameter is beyond the manufacturer’s limit or the surface has gone oval. Otherwise the existing drum can stay after cleaning.
If the handbrake does not hold, is it the shoes?
Usually yes, but a stretched handbrake cable and a seized self-adjuster give the same result. Check the adjustment and cable first.