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