GeoBrakes stocks OEM-grade brake drums confirmed to fit the Chevrolet G30, the cast-iron components that form the friction surface for the G30 drum brake shoes. Available in standard and corrosion-coated configurations for your G30, every drum is manufactured to the correct inner diameter, wall thickness, and surface finish for the Chevrolet G30
The brake drum on the Chevrolet G30 is the rotating cast-iron bowl that the G30 drum brake shoes press against to slow your vehicle. Mounted to the rear axle hub of your Chevrolet G30, it spins with the wheel and provides the friction surface that the shoes contact under braking. Unlike brake rotors, which can be visually inspected from outside the wheel on many G30 vehicles, Chevrolet G30 brake drums fully enclose the shoe assembly, which means wear and damage often goes unnoticed until braking performance on the Chevrolet G30 is noticeably affected.
Standard OEM-Grade Drums for the Chevrolet G30
Standard OEM-grade cast-iron drums for the Chevrolet G30 are manufactured to the original equipment diameter, wall thickness, and surface finish specification for your G30. They are the direct replacement for the factory G30 drum with no modification required.
Coated Brake Drums for the Chevrolet G30
Coated Chevrolet G30 brake drums feature a corrosion-resistant coating applied to the external drum surfaces of your G30, the hat section, outer wall, and wheel mounting face. Surface rust is a common issue on Chevrolet G30 drum brake vehicles in US, particularly during periods of non-use in winter when moisture and salt collect inside the G30 wheel well. A coated drum on your Chevrolet G30 resists surface rust that can transfer to the wheel mounting face, making future drum removal significantly easier at the next G30 brake service.
Chevrolet G30 brake drum replacement requires matching the correct inner diameter, wall thickness, bolt circle, hub bore, and drum offset for your G30. Errors in any of these dimensions produce incorrect shoe-to-drum clearance, uneven wear, and braking problems on the Chevrolet G30. Our vehicle selector eliminates those risks by confirming the correct drum for the Chevrolet G30 exact year, make, model, and axle. Coated G30 drum options are available for vehicles with heavy salt exposure.
How long do brake drums last on a Chevrolet G30?
Chevrolet G30 brake drums typically last 150,000 to 200,000 kilometres with periodic resurfacing, significantly longer than disc brake rotors on the G30. Each resurfacing removes material from the G30 drum and reduces wall thickness. Once the Chevrolet G30 drum reaches its maximum allowable inner diameter, it must be replaced rather than turned again.
Should I replace brake drums on my Chevrolet G30 in pairs?
Yes. Replace both Chevrolet G30 drums on the same axle to maintain balanced braking. Drums of different inner diameters on the G30 create uneven friction forces, causing the Chevrolet G30 to pull to the fresher-drum side during braking.
Should I replace drums and shoes at the same time on my Chevrolet G30?
Yes, it is strongly recommended for the Chevrolet G30. New shoes on a scored or out-of-round G30 drum wear unevenly from day one. New Chevrolet G30 drums with old shoes that have worn to match the old drum surface will contact the new bore incorrectly. Replacing both together on the G30 ensures proper break-in and maximum service life from both components.