The AEV 4" DualSport RT Suspension System for the JL Wrangler Unlimited is engineered to deliver maximum off-road capability without compromising on-road stability, steering precision, or overall vehicle control. As a fully integrated system, it accommodates up to 39" tires when equipped with AEV Heavy Duty Adjustable Lower Control Arms, all while preserving proper geometry, balanced ride quality, and predictable handling characteristics Unlike conventional lift kits that prioritize height over performance, the DualSport RT system focuses on optimized wheel travel, corrected steering geometry, and system-wide integration, resulting in a suspension system that performs cohesively in all driving conditions As with all of AEV's expedition-ready suspension systems, the 4" DualSport RT Suspension System for the Jeep Wrangler JL is FMVSS No. 126 is a rigorous standard set by the National Highway Traffic Safety Administration (NHTSA) that tests new electronic stability control (ESC) systems by subjecting it to various maneuvers designed to evaluate its effectiveness in preventing loss of control and skidding, including evasive lane-changing maneuvers at highways speeds
Specifications
- Technical SpecsMaximum wheel backspacing.37x12.5 tires: 5.2" or less.39x13.5 tires: 4.9" or lessMax tire size w/ factory flares 39x13.5" on AEV 17"x8.5" 0mm offset Borah or Blacktail and requires use of AEV Heavy Duty lower control arms for full tire clearance/travel during steering and articulation
- Larger tires, such as the common 40x13.5 will require modifications to factory fender flares, wheel liners, potentially bumpers, etc
- Designed for a true 4" lift on a "typically equipped" offroad-capable Wrangler
- This includes heavy duty steel bumpers, winch, tire carrier with full-size spare, and typical gear and carg
Important Notes
- Important Fitment NotesThis suspension system requires wide-track axles, which are standard on Rubicon, Moab, and several other JL Wrangler trims
- Maximum wheel backspacing is 5.2" or less for 37x12.50 tires and 4.9" or less for 39x13.50 tires
- To accommodate 39" tires, sufficient clearance at full steering lock is required between the tire and the front lower control arm
- Factory JL front lower control arms may limit tire clearance in this configuration
- AEV Heavy Duty Adjustable Lower Control Arms, or equivalent aftermarket front lower control arms with a high-clearance bend profile, are required to achieve proper 39" tire fitment
Kit Contents
- Conbox, JL 4" Suspension, LHD gas engine
- Shock Kit, JL 4", RT5100
- JL, Stamped Geometry Bracket Kit
- Spring Kit (pair), JL FRT +4.0" Suspension, Gas 3.6L
- Spring Kit (pair), JL RR +4.0" Suspension, Gas 3.6L
- Mount Kit, JL / JT High Steer
- JL / JT High Steer Tie Rod
- Steering Damper, JL/JT
Fitment
- Jeep Wrangler JL 4-Door 2018-2026 (Gas)
Part Numbers
- MPN N0741000AA ยท UPC 810092174219
