The Powerstop K2070-36 Z36 Noise-Free Truck & Tow brake rotors are designed for 07-13 Silverado / Sierra 1500 trucks and 4x4s. These rotors offer extreme braking performance, dust-free braking, and virtually noise-free braking. They are made of stainless steel and feature drilled & slotted performance rotors for maximum cooling. The rotors are zinc plated and include ceramic brake lubricant and premium stainless steel hardware kit. With an unspecified length manufacturer warranty, these rotors provide better heat dissipation and are ideal for custom performance installations on the rear and front of vehicles.