2" Rear Leveling Lift Block Kits. 1999-2019 GMC Sierra 1500 2WD/4WD. 1999-2019 Silverado 1500 2WD/4WD. Rear Raise Blocks x2. CNC Processing Rear Blocks. CNC automatic processing ensure high accuracy and stability(0.02mm),Provide accurate hole position for easy installation.
