Fitment: Compatible with 1999-2006 C1500 Silverado 2WD / 4WD; Compatible with 1999-2006 C1500 Sierra 2WD / 4WD; Compatible with 2007 Chevy Siverado / GMC Sierra 1500 Classic Durable and Reliable: Constructed from high-quality steel, this 6" Rear Lowering Drop Flip C-Notch Suspension Kit offers exceptional compressive and tensile strength, ensuring long-term durability and reliability Improved Performance: By lowering the rear 6 inches, your vehicle's body comes closer to the ground, creating a sportier and more personalized look Improved Stability: Equipped with a high-strength C-notch design, this kit enhances suspension stability and improves the driving experience, ensuring a smooth ride in all road conditions Package: Comes with 1 x 6" Rear Lowering Drop Flip C-Notch Suspension Kit. Instructions and accessories not included