GMC Sierra 1999-2015, 2WD & 4WD 6-lug, 3" Rear Block Kit
Silverado & Sierra 1500 1999-2015, 2WD & 4WD, 3 inch Rear Block Kit
ReadyLIFT® OEM style rear block kits are now available for model specific applications. 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 Truck an additional 1” to 3” depending on application. Based on OEM designs and never made out of light weight extrusions our 3" GM Blocks are made from cast iron and have Anti-Rotation ears built-In. Fits 1999-2015 classic and new body style 6-lug model GM trucks. New models with OEM 1.25" blocks will want to take advantage of the additional 1.75" of lift for towing and hauling, particularly when using a front leveling kit. 1999-2006 4wd trucks will replace the factory 2" block for an additional 1" of lift. 1999-2006 2wd trucks will gain the full 3" of lift. Eliminates the dangers of having to stack blocks which can be illegal in some states.
ReadyLIFT® Block Kits will put a slight rake back in your Truck for hauling or towing and are designed to work in concert with your ReadyLIFT® Suspension Leveling Kit. Like all ReadyLIFT® products these block kits come with our Lifetime Warranty. Installation time is approximately 1+ hours.
NOTE: For '99-UP GM 1500 Trucks which will see off road use or conditions which can cause excessive rear suspension cycling while using the factory rear shock, ReadyLift recommends the use of the 67-3809 Rear Shock Extension Kit .
The ReadyLIFT 3" Rear Block Kit works great with our 66-3085 GM 6-lug 2.25" front leveling kit to achieve a mild lift stance with a slight rake put back in or with our popular 66-3050 Torsion Keys and 66-3000 Torsion Keys Leveling Kits to work as the perfect towing package.
Good product, easy install Review by Nate
Price Value Quality
Installed it on my 10 Sierra 1500. Bought it along with the front leveling kit 66-3085. It was fairly simple to install. Much less work than I imagined. Now my truck has the stance that I wanted. (Posted on 1/28/14)
Excellent product, easy install. Review by Chris
Price Value Quality
Installed this kit on a 2009 Silverado 1500 LTZ. Took about 2 hours (much faster if you have an impact gun with good torque). The kit installs super easy, just as directions say. I was using a 1/2 ratchet so it took me a bit to get through the length of threads on the u-bolts. Finish on product is exactly as pictured in the photo above. My truck had a leveling kit installed, which actually makes the front a bit higher than the back. I wanted the factory rake (higher in back), so this kit got the truck back to that stock angle. You can count on the quality of these parts, as well as the fit. Everything installs perfectly. (Posted on 9/10/13)