4.5" 2018-2026 Jeep Wrangler JL (4 Door) J-Krawl Long Arm Lift Kit by JKS

The JKS JSPEC235KFP 4.5-Inch J-Krawl Long Arm Suspension Lift Kit for 2018-2026 Jeep Wrangler JL 4-Door models is a complete suspension system engineered to increase ground clearance, articulation, suspension travel, and overall vehicle control. The system combines true long-arm suspension geometry with heavy-duty 2-inch diameter control arms, high-clearance mounting brackets, adjustable track bars, JKS dual-rate coil springs, and selectable FOX shocks. Standard-rate and heavy-duty-rate coil springs are available, along with FOX 2.0 Performance Series or FOX 2.5 Performance Elite shocks. Steering correction can be configured without a drag link flip kit for vehicles already equipped with one or with the APEX Drag Link Flip Kit when steering correction is still needed.

JKS long-arm geometry replaces the shorter factory control arm arrangement with extended control arms and revised mounting points, allowing the axles to move through suspension travel with reduced bind. Heavy-duty 2-inch steel control arms provide the strength required for demanding trail use, while specially engineered bushings balance suspension flexibility with predictable highway handling. Optimized anti-dive and anti-squat characteristics help control chassis movement during braking and acceleration, and adjustable track bars allow precise front and rear axle positioning at the increased ride height.

JKS progressive dual-rate coil springs provide the foundation for the 4.5-inch lift and are available in standard-rate or heavy-duty-rate configurations. Standard-rate coils provide a balanced spring setup for typical Wrangler JL builds, while heavy-duty-rate coils offer additional support for vehicles carrying added accessory weight such as bumpers, recovery equipment, or a winch. High-clearance frame brackets, replacement rear control arm mounts, rear axle brackets, and an integrated transmission crossmember/control arm mounting system are positioned to preserve valuable underside clearance while providing the structural support the long-arm suspension requires.

Damping options include FOX 2.0 Performance Series shocks for balanced street and trail performance or FOX 2.5 Performance Elite shocks for increased damping capacity and greater control during demanding off-road use. You can order the steering configuration without a drag link flip kit if a compatible steering correction system is already installed, or with the APEX Drag Link Flip Kit to provide the steering correction required for the 4.5-inch suspension height. With support for up to 37-inch tire combinations and multiple spring, shock, and steering configurations, the JSPEC235KFP provides a highly configurable long-arm suspension platform for Wrangler JL builds focused on ground clearance, articulation, stability, and trail capability.

Features & Benefits

• Provides approximately 4.5 inches of suspension lift for increased ground clearance and tire clearance
• Designed for 2018-2026 Jeep Wrangler JL 4-Door models
• True long-arm suspension geometry improves articulation and suspension travel
• Heavy-duty 2-inch diameter steel control arms provide increased strength and durability
• Extended control arm geometry promotes smoother axle movement throughout the suspension travel range
• Long-arm design reduces suspension bind for improved traction over uneven terrain
• Custom control arm bushings balance off-road flexibility with controlled on-road handling
• Optimized anti-dive geometry improves stability during braking
• Optimized anti-squat geometry helps control chassis movement during acceleration
• Adjustable front and rear track bars provide precise axle positioning
• JKS progressive dual-rate coil springs provide controlled ride quality throughout the suspension travel
• Available with standard-rate coil springs for balanced street and off-road performance
• Available with heavy-duty-rate coil springs for additional support with added vehicle weight
• High-clearance frame brackets help preserve valuable underside clearance
• Replacement rear control arm mounts improve suspension geometry and trail clearance
• High-clearance rear axle brackets support proper long-arm suspension geometry
• Integrated transmission crossmember provides heavy-duty long-arm control arm mounting points
• Structural suspension components are positioned to minimize hardware extending below the frame rails
• Available with FOX 2.0 Performance Series shocks for balanced street and trail damping (see options)
• Available with FOX 2.5 Performance Elite shocks for increased damping capacity and off-road control (see options)
• Available without a drag link flip kit for vehicles already equipped with compatible steering correction (see options)
• Available with the APEX Drag Link Flip Kit for steering correction at the increased ride height (see options)
• Drag link flip steering correction is required for the 4.5-inch lift configuration
• Multiple coil spring, shock, and steering configurations allow the suspension system to be matched to different vehicle setups and performance goals
• Accommodates up to 37-inch tire combinations with properly configured wheels