ReadyLIFT OEM-style rear block kits are available for the 2011-2023 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 2011-2023 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. ReadyLIFT Block Kits will put a slight rake back in your truck for hauling or towing and are designed to work with your ReadyLIFT Suspension Leveling Kit. Like all ReadyLIFT products, these block kits come with our Lifetime Warranty. Longer shocks will be required if you do not currently already have longer rear shocks.

ReadyLift 4" Rear Block Kit - GM Silverado / GMC Sierra 2500HD/3500HD 2011-2023 26-3204

Specifications:

California Proposition 65	WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product.
Color	Black
Fitment	Direct Fitment
Install Difficulty	Difficult Requires Professional Installation
Installation Time	1 Hour
Material	Cast Iron
Nuts Included	Yes
Prop65 Chem1	Di(2-ethylhexyl)phthalate (DEHP)
Description_INV	RL 4'' REAR BLOCK KIT - CHEVY/GMC
Description_EXT	4" Rear Block Kit - GM Silverado / GMC Sierra 2500HD/3500HD 2011-2023
Description_MKT	ReadyLIFT OEM-style rear block kits are available for the 2011-2023 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 2011-2023 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. ReadyLIFT Block Kits will put a slight rake back in your truck for hauling or towing and are designed to work with your ReadyLIFT Suspension Leveling Kit. Like all ReadyLIFT products, these block kits come with our Lifetime Warranty. Longer shocks will be required if you do not currently already have longer rear shocks.
Description_FAB	2011-2023 GM 2500HD/3500HD OEM Style 4" Rear Lift Block Kit
Description_FAB	4" Tall rear block kit
Description_FAB	Cast Iron construction
Description_FAB	Ecoated finish
Description_FAB	Includes new longer ubolts and hardware
Description_FAB	Will require longer shocks if you don't already have them.
Description_FAB	201120112023 GM 2500HD/3500HD OEM Style 4" Rear Lift Block Kit
Description_FAB	E Ecoated finish
Description_FAB	Includes new longer u Includes new longer ubolts and hardware
Description_DEF	Suspension Leaf Spring Block Kit

This Part Fits:

Year	Make	Model	Submodel	Notes
2015	Chevrolet	Silverado 2500 HD	High Country	Incl. 4 in. Blocks; U-Bolts;
2015	Chevrolet	Silverado 2500 HD	LT	Incl. 4 in. Blocks; U-Bolts;
2015	Chevrolet	Silverado 2500 HD	LTZ	Incl. 4 in. Blocks; U-Bolts;
2015	Chevrolet	Silverado 2500 HD	WT	Incl. 4 in. Blocks; U-Bolts;
2015	Chevrolet	Silverado 3500 HD	LT	Incl. 4 in. Blocks; U-Bolts;
2015	Chevrolet	Silverado 3500 HD	LTZ	Incl. 4 in. Blocks; U-Bolts;
2015	Chevrolet	Silverado 3500 HD	WT	Incl. 4 in. Blocks; U-Bolts;
2011	GMC	Sierra 2500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2012	GMC	Sierra 2500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2013	GMC	Sierra 2500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2014	GMC	Sierra 2500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2015	GMC	Sierra 2500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2016	GMC	Sierra 2500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2017	GMC	Sierra 2500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2018	GMC	Sierra 2500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2019	GMC	Sierra 2500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2011	GMC	Sierra 3500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2012	GMC	Sierra 3500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2013	GMC	Sierra 3500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2014	GMC	Sierra 3500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2015	GMC	Sierra 3500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2016	GMC	Sierra 3500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2017	GMC	Sierra 3500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2018	GMC	Sierra 3500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;
2019	GMC	Sierra 3500 HD		Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;,Incl. 4 in. Blocks; U-Bolts;