The Rancho rear blocks will raise the rear an additional 1 ?-inches to level out the entire truck. Each kit includes (2) rear blocks, (4) coated U-bolts, and (8) nuts for easy installation. Kit also includes rear Bump Stop Spacers. If you?re looking for a complete performance upgrade package, match this rear block kit with a Rancho Level It System and Performance Upper Control Arms. This product offers a Limited Lifetime Warranty. Lifts rear up 1 ?-inches U-Bolts and hardware included Rear Bump Stop Spacer included Limited Lifetime Warranty Designed to allow for the use of larger wheel/tire combinations