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66-3002 2.25" REAR BLOCK KIT - GM SILVERADO & SIERRA 6-LUG 1999-2021

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Chevy/GMC 2" OEM Style Cast Iron Rear Block Kit.

Includes new u-bolts and hardware.

Fits 1999-2021 GM 1500 trucks.

Not for use on 2019-2021 GM 1500 trucks with the composite rear overload.

May require longer shocks or shock extension 67-3809