JK 4.0 Inch Lift Stage 3 Suspension System 07-18 Wrangler JK 2 DR (8023-40)

Synergy Jeep JK 4 Inch Lift Stage 3 Suspension System includes all the components from the Stage 2 System but exchanges the Fixed Length Lower Control Arms for Adjustable Lower Control Arms (8051, 8052) and adds Adjustable Upper Control Arms (8053, 8054) front and rear. The Adjustable Control Arms are required for locating the front/rear axles with lift heights over 3 inch for adjusting the pinion angles when using aftermarket 1310-1350 drive shafts. This system also adds Front and Rear Adjustable Track Bars for centering the axles under the vehicle at the increased ride height. This system will fit 37 inch tires with stock fenders or 40 inch tires with high fenders.Details:Fits 07-18 Jeep Wrangler JK 2-DoorStage 3 key features are front and rear track bar relocation brackets, flipped drag link, and adjustable upper and lower control armsFront and rear bump stop extension kitsFront and rear sway bar linksFront and rear extended Stainless Steel steel braided brake linesSynergy double adjuster sleeve pinch bolt assembly allows for adjustment of control arm, track bar, tie rod, and drag link length without removalFront and rear track bar relocation brackets raise track bar mounting positions increasing suspension roll center heights which improves handling on and off roadLower control arms manufactured from high quality crush resistant 1-3/4X.188 inch Wall 1026 DOM tubing to increase durability and correct casterFeatures Synergy Dual Durometer Bushings (DDB) with Teflon bearing surface for a maintenance free design focusing on performance, flex, longevity, and ride quality.Front and rear lower shock mountsOptional front sway bar disconnect system for ultimate trail articulation mounts sway bar up and out of the way when disconnected from the axleProgressive wound coil spring manufactured using the latest in CNC hot winding technology keeps spring from coming unbound at full suspension droopSuspension components feature an abrasion-resistant Powdercoat finish for maximum durability and corrosion resistance100 percent bolt on components assure an easy, trouble free installation with the use of basic hand toolsRequires a maximum 4-3/4 inch backspace wheel or wheel spacer with factory wheel setup. 4-1/2 inch back spacing is recommendedSynergy suspension systems are a modular design so all components are available separatelyNotes:2012+ JK's lifted over 2 inch will require exhaust spacers (5017), or a front aftermarket drive shaft to prevent interference with the exhaust.3 inch and up lifts, aftermarket driveshafts are recommendedSprings are designed to provide the advertised amount of lift with use of aftermarket bumpers, wInch tire carriers. More lift will occur on vehicles in stock trim.Springs retain the factory rake of the vehicle where the rear is higher than the front. Vehicle should sit level when loaded. Request one size shorter rear springs to level the vehicle out when unloaded.Requires 16 inch or larger wheel diameter