RL 6'' GM 1500 LIFT KIT W/ ARC | BIG LIFT KITS | READYLIFT SUSPENSION | 44-39610 RL 6'' GM 1500 LIFT KIT W/ ARC6'' Big Lift Kit 1500 Denali / High Country With ARCThe 44-39610 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 6" lift kit features heavy-duty angled and offset top mount strut extensions that realigns the struts to optimize shock performance and minimize wear. A 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 5" tall fabricated steel rear blocks with integrated bump stop landings have been added as well as new rear shock extensions to retain full functional use of the factory ARC rear shocks. With over 9 months of engineering and development and more awesome features than we could possibly mention, the bottom line is this new Big Lift Kit is the best 6" lift kit you can install on a new body style 2019-2021 GM 1500 4WD truck! Thousands of miles of road and trail testing have proven our new 6" lift kit makes these new GM 1500 trucks ride better than stock! Wheel and tire fitment information: 44-39610 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. NOTE: This GM 1500 kit is NOT COMPATIBLE with vehicles equipped with rear composite mono-leaf springs. The mono-leaf is easily identifiable the U-bolt is round/circular around the top of the leaf spring. This kit only works with vehicle equipped with traditional steel leaf springs identified by square U-bolts.6" lift kit specifically designed for 20192021 Chevy Silverado High Country and GMC Sierra 1500 Denali trucksCompatible with Adaptive Ride Control (ARC) suspension vehiclesRetains full operation of factory equipped ARC systemEngineered for superior ride quality and handling performanceIncludes ReadyGuard Powertrain WarrantyNot recommended for use with Auto 4 Hi featureNot compatible with rear monoleaf springsSingle Cab configuration not validated for fitment and drivability by ReadyLIFTEasy to determine if your vehicle has rear monoleaf springs6"" lift kit specifically designed for 2019 6"" lift kit specifically designed for 20192021 Chevy Silverado High Country and GMC Sierra 1500 Denali trucksNot compatible with rear mono Not compatible with rear monoleaf springsEasy to determine if your vehicle has rear mono Easy to determine if your vehicle has rear monoleaf springs"Shipping RequirementsLTL Freight Required