2006-08 CHEVY TRAILBLAZER SS 6.0L DRILL SLOT FRONT & REAR ROTORS Package Includes 4 Brake RotorsDrill & Slotted The cross-drilled holes and slots provide an exit route for gasses and dust, resulting in better heat dissipation and less brake fade under hard use. These rotors provide you with maximum stopping power, reduced warping, and longer life. Zinc plated for protection of rusting