ReadyLift 2007-2013 Silverado & Sierra 4wd 4" Lift Kit # 69-3485

The ReadyLift 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. ReadyLift's goal is to provide a true 4.0" lift kit that is completely bolt-on; no drilling, cutting or welding required. This system significantly increases ground clearance while allowing for tire sizes up to 33" in diameter. The most common tire size for this application is 33x12.50 (maximum). In order to install a 33x12.50 (305/55/20) with aftermarket wheels, some minor trimming of the inner fenderwell may be required.

The ReadyLift 4.0" SST Lift Kit will raise the 2007, 2008, 2009, 2010, 2011, 2012 and 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, ReadyLift 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 ReadyLift's all-new 100% DOM tubular upper control arm. This new heavy-duty control arm features OEM-style ball joints that are 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 ReadyLift's 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, ReadyLift CNC-machined brackets cannot ever bend, break or cause any driveline problems when using 4WD mode. That is guaranteed by ReadyLift! Accompanying the 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. ReadyLift 3.0" rear lift blocks are tapered to provide 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 manufactured 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 the 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 the ReadyLift Limited Lifetime Warranty.

NOTE: If you intend to run the factory GM wheels and tires, a wheel spacer is required to prevent the tire from touching the control arm at full locked turn. PerformanceLifts.com offers ReadyLift part number 10-3485 available for purchase separately using the drop down selection box located below this item description.

This item ships for FREE to any address located in all 50 United States of America!