3.5" 2018-2026 Jeep Wrangler JL (4 Door) J-Kontrol Lift Kit by JKS

The JKS JSPEC141 3.5" J-Kontrol Suspension System for 4-Door Jeep Wrangler JL models increases clearance, capability, and overall performance while delivering confident handling on-road and off-road. Designed as a performance-focused step up from the JKS J-Venture lineup, this true bolt-on suspension system enhances stability and suspension geometry without sacrificing daily drivability.

Building on the proven J-Venture foundation, the J-Kontrol system adds front control-arm correction brackets that allow factory control arms to operate at corrected angles after lift. This improves caster, steering feel, and overall handling while reducing driveline stress. Matched JSPEC dual-rate front and rear coil springs, available in standard or heavy-duty configurations, provide a comfortable and controlled ride on pavement while maintaining load capacity and stability during off-road use. To ensure proper axle positioning after lifting, the system includes a front adjustable track bar and rear track bar bracket to accurately recenter the axles. Front Quicker-Disconnect sway bar end links and rear sway bar links increase articulation when off-road, while front and rear bump stop extensions properly limit suspension up-travel and protect shocks and suspension components during aggressive use.

The J-Kontrol 3.5" suspension system is available with multiple custom-valved shock options to match driving style and terrain demands, including FOX 2.0 Adventure Series, FOX 2.0 Performance Series, FOX 2.5 Performance Series, and FOX 2.5 Performance Elite Series shocks. Engineered for bolt-on simplicity, long-term reliability, and balanced performance, this suspension system provides the control, comfort, and confidence needed to run larger tires and tackle a wide range of terrain without compromising everyday usability.

Features and Benefits:

• JKS 3.5" J-Kontrol suspension system designed for 4-Door Jeep Wrangler JL models
• Performance-focused step up from the JKS J-Venture lineup with improved stability and geometry
• True bolt-on suspension system engineered for balanced on-road and off-road performance
• Front control arm correction brackets flatten control arm angles to correct caster and improve handling
• JSPEC dual-rate front and rear coil springs are available in standard or heavy-duty rates
• Available shock options include FOX 2.0 Adventure Series, FOX 2.0 Performance Series, FOX 2.5 Performance Series, and FOX 2.5 Performance Elite Series shocks
• Front adjustable track bar and rear track bar bracket properly recenter axles after lifting
• Front Quicker-Disconnect sway bar end links and rear sway bar links increase off-road articulation
• Front and rear bump stop extensions properly limit suspension up-travel and protect components
• Designed to work with factory control arms while improving ride quality and drivability
• Supports larger tire fitment with proper wheel and backspacing combinations (trimming may be required)