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The R1 Concepts drilled-and-slotted black brake rotor is cataloged as a replacement rear-left rotor for medium-duty GMC TopKick applications. It’s described as drilled & slotted with a black finish to meet the listed specification and serve as a serviceable rotor for the rear assembly. Fitment is explicit: for GMC C5500 TopKick applications from 2003–2010 in the rear-left position.
R1 03-10 GMC C5500 Topkick Rear Left Drilled & Slotted Black Brake Rotor
