JKS JSPEC108KFA 3.5 Inch J-Kontrol Suspension Lift Kit System 4-Door

The JKS J-Kontrol 3.5-inch suspension system is a premium lift kit designed for 2007-2018 Jeep Wrangler JK 4-Door models, delivering exceptional stability and performance both on-road and off-road. Built on the proven J-Venture platform, the J-Kontrol system adds front control arm correction brackets and a drag link flip kit to further enhance handling and geometry.

Key Features:

• JSPEC dual-rate progressive coil springs for superior ride quality and load performance
• FOX 2.0 Adventure Series gas shocks with custom valving for optimal damping
• Front control arm correction brackets to flatten control arm angles and correct caster for improved on-road handling
• Heavy-duty drag link flip kit flattens steering angle to mimic factory geometry and eliminate bump steer
• Front adjustable track bar with 1-1/4 inch threaded end and 1-1/2 inch x 3/8 inch wall DOM tubing
• Rear track bar relocation bracket made from 3/16-inch heavy-duty steel
• JKS Quicker-Disconnect sway bar end links with poly-flex ball and high-misalignment ends
• Front and rear bump stop extensions to limit suspension travel safely
• Front and rear brake line relocation brackets for proper clearance
• All necessary hardware included for complete bolt-on installation

The control arm correction brackets are constructed from heavy-duty 7-gauge steel, fully boxed and welded for superior strength. They install inside factory upper and lower control arm mounts using factory hardware. The system is designed to accommodate 35-inch tires and requires 17-inch or larger wheels with 4.5-inch backspacing or smaller for proper steering clearance.

Installation Notes:

• 2012-2018 models with 3.6L Pentastar motor require exhaust modification (JKS8150 exhaust extensions) for driveshaft clearance at full suspension droop
• Rubicon sway bar link hardware included in kit
• Rear track bar brace (JKSOGS169) strongly recommended to reinforce factory axle mount
• Installation difficulty: Moderate, approximately one day install time

The J-Kontrol system combines JKS Manufacturing's off-road expertise with enhanced street handling capabilities, making it ideal for daily driving, beach cruising, and regular trail use. All components are engineered to work together as a complete suspension system for balanced performance and durability.