1999-2021 GMC Sierra 1500 Rear Suspension Lift Blocks 2WD 4WD | SUPREME'S NEW HD STEEL BLOCKS - 9/16 PIN! Suspension **Will not fit Rubicon models

**Will not fit Rubicon models due to the larger Dana 44 front axle

Our shackles include pre-pressed poly bushings for a superior lifted ride quality and are fitted with zerk grease fittings making them easily serviceable to keep your bushings from drying out and eliminate the need for replacement over time

5" front spaces

Engineered internal bumper structure provides additional rigidity and resists deflection during recovery or from impacts

Adjustable wideness from 2

1999-2021 GMC Sierra 1500 Rear Suspension Lift Blocks 2WD 4WD | SUPREME'S NEW HD STEEL BLOCKS - 9/16 PIN! Suspension **Will not fit Rubicon modelsIncludes 2 Rear Lift Blocks Specifically designed for vehicles equipped with factory lift blocks. Precision Laser Cut for Outstanding Performance and Quality. 1 Piece CNC Formed Steel Frame for Maximum Strength and Stability. Heavy Duty GMAW Seam and Fillet Welding Processes to Ensure Maximium Resistance. Built In Tapper to Optimize Pinion Angles and Preserve Stock Ride Quality. Reinforced 9 16th Center Pin to Ensure Stability and Easy Installation.