Parts for your 2020 Holden Astra-Brake shoes

2020 Holden Astra brake shoes — are they used, and what to know

Checking trusted technical sources shows that brake shoes are only used on some 2020 Holden Astra variants. The BK-series Astra R (1.4T) is fitted with rear drum brakes that use brake shoes, while the Astra RS and RS-V (1.6T) run rear disc brakes and therefore don’t use brake shoes. This is documented across Holden Australia specification sheets and owner’s manuals for MY19–MY20, RedBook AU model data listing rear “Drum” on Astra R and rear “Disc” on RS/RS-V, plus Bendix and Bosch brake catalogues and the GM/ACDelco electronic parts catalogue that list rear shoe sets for BK Astra with drum rears.

If their 2020 Astra has rear discs, brake shoes aren’t relevant to that vehicle. If it’s the Astra R with rear drums, brake shoes are a normal wear item and part of routine servicing.

For Astra R owners, the rear brake shoes do the heavy lifting inside the drum: they press outward against the drum surface to slow the car and also provide most of the holding force for the park brake. They’re durable, low-maintenance, and well suited to everyday commuting. Over time, the friction lining wears, hardware loses tension, and dust builds up, which can reduce braking bite or cause noise.

As part of regular servicing, it’s smart to have the rear drums removed and the shoes inspected about every 20,000–30,000 km or at every second service, sooner if there’s squeal, reduced park-brake hold, or a longer pedal. A technician will check shoe lining thickness (replace near 2 mm remaining), look for glazing, heat spots, or contamination from a weeping wheel cylinder, clean out brake dust, lubricate contact points sparingly, and inspect/replace springs and adjusters if tired. Drums should be measured for diameter and condition