The Power Stop Evolution drilled and slotted zinc-plated rotor pair is a front upgrade for 2011–2021 GMC Sierra 3500 HD brakes. Cross-drilled holes and rounded slots help cool the rotor and clear gasses, dust and water, while silver zinc dichromate plating resists corrosion. Built to strict tolerances and dynamically balanced, these rotors install as a bolt-on upgrade and are sold as a matched pair.
Power Stop 11-21 GMC Sierra 3500 HD Front Drilled & Slotted Rotor - Pair