{"product_id":"readylift-2019-2024-1500-trail-boss-at4-4in-4-inch-factory-2-inch-big-lift-kit-with-falcon-2-1-shocks-44-39421","title":"ReadyLift 2019-2024 1500 Trail Boss \/ AT4 4in (4-inch + Factory 2-inch) Big Lift Kit with Falcon 2.1 Shocks - 44-39421","description":"\u003cp\u003e4\" (4-inch + Factory 2-inch) Big Lift Kit With Falcon 2.1 Shocks - 2019-2024 1500 Trail Boss \/ AT4 (part number 44-39421).\u003c\/p\u003e\u003cp\u003eThe 44-39421 lift kit utilizes the very best in ReadyLIFT engineering with boxed steel front\/rear cross members and full-width front skid plate constructed of thick 3\/16\" plate steel. New 1\/4-inch boxed plate steel differential drop brackets feature a double gusset and boxed center rib to take the abuse of front differential torsional twisting. Our 4\" lift kit features heavy-duty angled and offset top mount strut extensions that realigns the struts to optimize shock performance and minimize wear.\u003c\/p\u003e\u003cp\u003eA specially designed lower mount strut pre-load spacer offers the added benefit of a slight increase in spring rate to better handle the larger wheels and tires that will find their way onto this new lifted truck. To lift the rear, new fabricated steel rear blocks with integrated bump stop landings have been added as well as new rear shock extensions.\u003c\/p\u003e\u003cp\u003eThousands of miles of road and trail testing have proven our new 4\" lift kit makes these new GM 1500 trucks ride better than stock! ReadyLIFT now offers an 4\" Big Lift Kit for the new 2019-2024 Chevy Silverado Trail Boss and GMC AT4 1500 trucks engineered for incredible ride quality and superior handling performance. Includes ReadyGuard Powertrain Warranty. Falcon 2.1 rear shocks Full retention of factory Auto 4WD functionality Revised suspension geometry engineered to help prevent driveline vibration\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment and Installation Notes\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUse of Auto 4 Hi feature not recommended. Not compatible with rear mono-leaf springs. Click here to learn how to determine if you have rear mono-leaf springs. Single Cab configuration has not been validated for fitment \u0026amp; drivability by ReadyLIFT.\u003c\/li\u003e\n\u003cli\u003eNot for use on Diesel motor applications. We do not recommend an 18\" wheel due to fitment issues. A 18x9 with 0mm offset or higher does not work.\u003c\/li\u003e\n\u003cli\u003eThese will not fit late model 2024 or 2025 applications that have round U-bolts. Using U-bolt part number 67-35150UB will allow this kit to fit 2025 applications.\u003c\/li\u003e\n\u003cli\u003eNot for use on Diesel as we don't include an oil line relocation bracket.\u003c\/li\u003e\n\u003cli\u003eWheel and tire fitment information: 44-39421 6\" Lift Kit - Recommended max tire with no trimming: 20x9 0 offset - 35x12.50 tire. *Max with trimming: 20x10 -18 offset - 35x12.50 or 325\/60R20 *Trimming requirements for larger than recommended wheel\/tire include front valance, front felt liner edge, rear felt liner edge and front-rear well edge mud flap.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAdditional Product Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFalcon Shocks - The Ultimate Blend of Performance, Quality, and Value\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFalcon 2.1 Monotube Shocks deliver increased stability, improved ride quality, and enhanced comfort in a compact, high-value performance package.\u003c\/li\u003e\n\u003cli\u003eOptimized for on-road driving, Falcon 2.1 shocks provide increased stability over stock while maintaining confident performance both on and off the road.\u003c\/li\u003e\n\u003cli\u003eVehicle-specific damping makes Falcon 2.1 shocks ideal for daily-driven trucks and SUVs, as well as enthusiasts looking for a consistent, controlled feel across a variety of driving conditions.\u003c\/li\u003e\n\u003cli\u003eRace-inspired technology delivers improved handling, stability, and chassis control for lifted trucks, SUVs, and off-road vehicles.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFalcon 2.1 Monotube Shock Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLarge 2.3-inch shock body for increased oil capacity, improved heat dissipation, and consistent damping performance\u003c\/li\u003e\n\u003cli\u003e6061-T6 aluminum-alloy billet piston\u003c\/li\u003e\n\u003cli\u003eHeavy-duty 3\/4-inch induction-hardened, chrome-plated shaft designed to resist rock damage, corrosion, and shaft buckling\u003c\/li\u003e\n\u003cli\u003eMicrocellular foam progressive bump stops*\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e*Bump-stop configuration varies depending on shock absorber collapsed length, tire size, and fender clearance.\u003c\/p\u003e\u003ch3\u003eKit Components\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHeavy-duty front-rear cross members and skid plate\u003c\/li\u003e\n\u003cli\u003eHeavy-duty top mount strut extensions and rear shock extensions\u003c\/li\u003e\n\u003cli\u003eSway bar drop brackets\u003c\/li\u003e\n\u003cli\u003eHeavy-duty fab steel rear lift blocks with bump stop landings.\u003c\/li\u003e\n\u003cli\u003eHeavy-duty cast iron lift knuckles engineered to retain factory-quality geometry.\u003c\/li\u003e\n\u003cli\u003eFalcon 2.1 Shocks\u003c\/li\u003e\n\u003cli\u003eAll necessary hardware and instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e ReadyLift\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 44-39421\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Suspension Lift Kits\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ReadyLift","offers":[{"title":"Default Title","offer_id":54818933866780,"sku":"44-39421","price":2399.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0762\/0142\/7228\/files\/44-39421.jpg?v=1793686484","url":"https:\/\/kaosor.com\/products\/readylift-2019-2024-1500-trail-boss-at4-4in-4-inch-factory-2-inch-big-lift-kit-with-falcon-2-1-shocks-44-39421","provider":"Kaos Offroad \u0026 Audio Designs","version":"1.0","type":"link"}