GeoBrakes stocks complete brake drum kits confirmed to fit the Chevrolet R20 Suburban, pairing OEM-grade brake drums at the correct inner diameter for the R20 Suburban with matched drum brake shoes and hardware for a full rear drum brake overhaul on your Chevrolet R20 Suburban in a single package. Every kit ensures drums and shoes are replaced together on the R20 Suburban, the only way to achieve correct contact geometry and maximum service life from both components. Each kit ships with a 100% fitment guarantee and free delivery across US on orders over $99.
A brake drum kit for the Chevrolet R20 Suburban addresses the most common brake service shortcut: replacing shoes on a worn R20 Suburban drum, or fitting new drums with glazed, worn shoes. Either combination prevents correct break-in on the Chevrolet R20 Suburban. New shoes have a specific arc radius that must contact a fresh drum surface across the full lining width on your R20 Suburban. A GeoBrakes drum kit eliminates that incompatibility by delivering matched drums and shoes confirmed for your Chevrolet R20 Suburban in a single order.
The kit for your Chevrolet R20 Suburban includes OEM-spec cast-iron brake drums at the correct inner diameter for the R20 Suburban for both left and right rear wheels, drum brake shoes with OEM-grade friction lining matched to the Chevrolet R20 Suburban drum bore and wheel cylinder specification, a brake hardware kit with return springs, hold-down hardware, and self-adjusters specific to the R20 Suburban, and drum retaining hardware where required by the Chevrolet R20 Suburban application.
Road salt and freeze-thaw cycles deteriorate every component in the Chevrolet R20 Suburban drum brake system over the same service interval. By the time a R20 Suburban drum is worn, the shoes are typically at or near minimum thickness, the hardware is corroded, and the wheel cylinder boots are deteriorating on your Chevrolet R20 Suburban. Replacing drums and shoes alone while leaving worn springs and seized adjusters on the R20 Suburban produces a service that underperforms within months.
Drum and shoe arc radius must match exactly for correct contact geometry on the Chevrolet R20 Suburban. An incorrect drum diameter or wrong-spec shoe lining for the R20 Suburban produces immediate uneven wear and noise. Every kit in the GeoBrakes catalogue is assembled for the Chevrolet R20 Suburban, drum diameter, shoe arc, and hardware spring rates all confirmed as a matched set specific to the R20 Suburban.
How do I know if I need a basic or full-service kit for my Chevrolet R20 Suburban?
A basic kit for the Chevrolet R20 Suburban is appropriate when the wheel cylinders have been recently replaced and show no signs of leaking. A full-service kit is the stronger choice during a high-mileage R20 Suburban overhaul, particularly on American Chevrolet R20 Suburban vehicles with significant winter salt exposure.
Should I replace drum kits on both rear wheels of my Chevrolet R20 Suburban at the same time?
Yes. Always replace drum brake components on the Chevrolet R20 Suburban as an axle set, both left and right rear, to maintain balanced braking force. Drums and shoes at different wear stages on the R20 Suburban create uneven rear braking that pulls the vehicle to one side.
Can I install a brake drum kit on my Chevrolet R20 Suburban myself?
Rear drum brake service on the Chevrolet R20 Suburban is a moderately advanced DIY task. It requires removing the drum, dismantling the shoe assembly on the R20 Suburban, correctly routing return springs, and adjusting shoes to the correct drum clearance. A service manual specific to the Chevrolet R20 Suburban is essential.