2.25" REAR BLOCK KIT - GM SILVERADO & SIERRA 6-LUG 1999-18

Chevy/GMC 2" OEM Style Cast Iron Rear Block Kit. Includes new u-bolts and hardware. Fits 1999-2018 GM 1500 trucks. Not for use on 1999-2018 GM 1500 trucks with the composite rear overload. May require longer shocks or shock extension 67-3809