ReadyLift 4" Rear Lift Block Kit For 2011-2022 Chevrolet/GMC 2500/3500HD 2022-2023 silverado 2500 The stock rocker arm bridges

The stock rocker arm bridges in your truck were engineered for stock output levels

Note: Aftermarket tuning and aftermarket high flow exhaust are required for installation of this turbo

Original single-hole sump design

Bypassing the intank fuel pump

ReadyLift 4" Rear Lift Block Kit For 2011-2022 Chevrolet/GMC 2500/3500HD 2022-2023 silverado 2500 The stock rocker arm bridgesReadyLIFT OEM style rear block kits are available for the 2011 2022 GM 2500HD 3500HD trucks. These Rear Block Kits include two (2) Rear Blocks, four (4) E Coated U Bolts, eight (8) Nuts and Washers and will safely lift the rear of your 2011 2022 2WD and 4WD 8 lug truck. Based on OEM designs and never made out of light weight extrusions, these 4" GM Blocks are made from cast iron just like the factory blocks, ensuring maximum strength and reliability.