2007-2013 CHEVY SILVERADO/SIERRA 1500 SST LIFT KIT TUBE A-ARM SPECIFICATIONS: 4WD 4.0″ FRONT 1.75″ REAR “ReadyLIFT is proud to introduce a new SST Lift Kit system for the 2007-2013 1500-series Silverado/Sierra 6-lug 4WD Trucks. (NOTE: Does Not Work With AWD Denali Trucks – Will NOT work with 2013-UP Z71 4WD trucks with Rancho front struts – Does NOT work on 2014 model 1500 trucks). For all 07-11 Z71s it is imperative that they measure vehicle prior to purchase. There must be a 2.25″ to 2.5″ difference between the front and the rear. Increased requests from customers wanting a true 4.0″ Lift Kit for their new body style Silverado trucks encouraged ReadyLift research and development to engineer the only 4.0″ completely bolt-on lift kit on the market today. We call the 69-3485 4.0” SST Lift Kit System our “stage three” kit for the late model Silverado/Sierra pickups. ReadyLIFT currently offers 1.5″ and 2.25″ front leveling systems for the 2007-2013 GM 1500 trucks. With the development of the 69-3485 4.0″ SST Lift Kit we now a lift solution for every Silverado owner. The 69-3485 4.0″ SST Lift Kit is the result of over six months of extensive product development followed by rigorous on and off road testing. This system significantly increases ground clearance while allowing for tire sizes up to 33″ on aftermarket wheels. The most common tire size for this application is 33×11.50. 22×9.5 with 5.5″ backspacing requires no fender modifications. 17×9 +0 offset on a 285/70R17 will fit with no rubbing. With a 295/70r17 minor trimming/modification required. Note: This kit is designed to be used with aftermarket wheels. Customers can now have the lift they have wanted but wasn’t available – until now! For information about tire and wheel sizes please visit the ReadyLIFT Tire Sizing and Calculator Page. The ReadyLIFT 4.0″ SST Lift Kit will raise the 2007-2013 Silverado/Sierra 1500 4WD trucks 4.0″ in front thanks to tough trail-proven 4.0″ powdercoated steel strut extensions that bolt directly to the top of the factory strut. Unlike some kits which require you to cut off your strut studs or break the top hat seal which are irreversible modifications, our rugged strut extensions require No Modifications to be made to the strut in order to install the extension. This guarantees the strut will maintain the factory integrity as well as drastically reducing installation time. Two key products were developed to make achieving 4″ of lift without modifications a possibly. At the heart of the system is our all-new 100% DOM tubular upper control arm. This new heavy-duty control arm features OEM-style ball joints pre-pressed into a strong crown that retains OEM geometry throughout the suspension cycle and doesn’t require any modifications to the spindle. That means no drilling or machining to make the ball joints fit the spindle. The new control arms include 90-degree grease fittings to insure the life of the new polyurethane bushings. The second important product that makes this kit possible is our Patent Pending CNC-machined 6061-T6 billet aluminum differential drop brackets. When raising the front suspension 4.0″ the differential must be lowered to maintain front axle and CV angles. Readylift has engineered a differential drop system that cuts installation time in half compared to other similar kits. Unlike other differential drop brackets made from steel plate that bend and can cause CV failure, our CNC-machined brackets cannot ever bend, break or cause any driveline problems when using 4WD mode. That is guaranteed! Accompanying our patent pending differential drop brackets is a thick powdercoated plate steel skid plate that utilizes the factory attachment locations for ease of installation while providing tough differential protection when off roading. To lift the rear of the Silverado/Sierra pickups this lift system includes 3.0″ OEM-style cast iron rear lift blocks and u-bolts. Our 3.0″ rear lift blocks include the correct pinion angle correction and axle locating ears for perfect fit and performance. This block replaces the factory 1.25″ rear block for an increase of 1.75″ which will provide approximately .5″ of rear to front rake. A slight rake is helpful for towing or hauling. Completing this great new lift system are a set of steel rear shock extensions. No need to replace your great-riding factory rear shocks with inferior aftermarket shocks. These new shock extension brackets keep the rear shocks in the factory mounting position which means your truck will ride great! And that’s important! Speaking of riding great, it is ReadyLift’s philosophy that every lift system we manufacture should maintain and/or improve the factory ride when installed and used as recommended. The ReadyLift 69-3485 4.0″ SST Lift Kit will make your truck ride and handle great while providing the raised height you have been wanting. Every one of our test vehicle owners have commented on how great the truck rides both on and off road with this system. Like all ReadyLIFT products, the 69-3485 SST Lift Kit System is protected by our Limited Lifetime Warranty. NOTE: The ReadyLIFT 4″ SST Lift Kit is designed for use with Aftermarket Wheels with a backspacing of 5.25″. If you intend to run the stock wheels with an aftermarket larger tire, a wheel spacer is required to prevent the tire from touching the control arm at full locked turn. ReadyLift has developed a CNC-machined billet aluminum wheel spacer 10-3485 for use with factory wheels which have the stud pockets cast into the wheel next to the lug holes on the back side of the wheel. To run the OE/Factory wheels AND tires, you will need to use the “ReadyLIFT 1/2″ Billet Wheel Spacers for use with OE/Factory wheels and tires”.” Not for use on AWD Denali Trucks. Will NOT work with 2013-UP Z71 4WD trucks with Rancho front struts Features & Benefits: Keeps your factory ride – Guaranteed Will never wear, break or fail – Guaranteed Toughest finish – Guaranteed Safest way to lift – Guaranteed Allows for up to 33″ tires on aftermarket wheels Allows for up to a 22×9.5″ wheel with 5.5″ of backspacing 17×9 +0 offset on a 285/70R17 will fit with no rubbing. With a 295/70r17 minor trimming/modification required. Limited Lifetime Warranty Reduced Installation Time – Save An Hour Or More On Installation Compared to Other Similar Kits Kit Includes: (2) Front SST 4.0″ Strut Extensions, (2) Rear Shock Extension Brackets, (2) OEM-Style 3.0″ Rear Lift Blocks With U-Bolts, (1) Steel Skid Plate, (2) CNC-Machined Differential Drop Brackets, (2) DOM Tubular Control Arms With Pre-Pressed Ball Joints, (8) Polyurethane Greaseable Bushings, Instructions & All Necessary Hardware.