3" REAR BLOCK KIT - GM SILVERADO & SIERRA 1500 6-LUG 1999-2018

Chevy/GMC 3 Inch OEM Style Rear Block Kit. 1999-2018 GM/CHEVY 1500 6 LUG 2WD/4WD 3.0in. TALL REAR BLOCK KIT OEM style cast iron rear lift blocks. Includes new U-bolts. Shock extensions may be needed depending on application.