GMC Sierra 2500HD, 2011-UP, 2WD & 4WD 8-lug with Trailering Package, 1" Block Kit
2011-2014 GM Silverado/Sierra 2500HD/3500HD OEM Style 1" Rear Lift Block Kit - 66-3121
For Use Only on SRW 2500HD trucks that have the factory Trailer Package rear springs.
ReadyLIFT® OEM style rear block kits are now available for the new 2011-2015 GM 2500 HD single rear wheel pickups with the factory Trailer Package rear springs. These Rear Block Kits include (2) Rear Blocks, (4) E-Coated U-Bolts, (8) Nuts and Washers and will safely lift the rear of your 2011-Up 2WD and 4WD 8-lug Single Rear Wheel GM trucks with trailer package springs 1". Based on OEM designs and never made out of light weight extrusions our 1” GM Blocks are made from cast iron just like the factory blocks, insuring 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.
For Use Only on 2500HD trucks that have the factory Trailer Package rear springs.
OEM style design
Made from cast iron, not light weight extrusions
Built in locator pin, not pressed in
Puts the rake back in your truck for towing and hauling
Installation time is approximately 1+ hours.
Works Great with our 66-3011 8-lug GM Leveling Kits