JKS JSPEC177PES 1.5" J-Spec Suspension Lift Kit for Jeep Wrangler JL 4-Door

The JKS JSPEC177PES J-Spec 1.5" Suspension Lift System is an engineered complete lift solution for the Jeep Wrangler JL 4-Door, delivering the kind of refined ride quality and off-road capability that JKS believes the factory suspension should have provided from the start. This system pairs JKS dual rate coil springs with your choice of specially tuned FOX 2.0 or 2.5 IFP shock absorbers — including Adventure Series, Performance Series, and Performance Elite options — creating a finely balanced package that excels on pavement and in the backcountry alike. The front lift measures 1.5" with a 1" rear lift, providing clearance for up to 35" tires on non-Rubicon models without sacrificing everyday drivability.

Key Features:

• 1.5" front / 1" rear lift height with clearance for up to 35" tires (non-Rubicon models)
• JKS dual rate coil springs deliver on-road comfort via a softer rate and increased off-road control via a firmer rate
• All springs are scragged to eliminate post-install settling and shot-peened for significantly enhanced long-term durability
• Longer free-length spring design creates a low-lift, high-wheel-travel system optimized for off-road use
• Compatible with FOX 2.0 IFP Adventure Series, FOX 2.0 IFP Performance Series, FOX 2.5 IFP Performance Series, or FOX 2.5 Performance Elite Series shocks (tuned specifically for this spring package)
• FOX 2.5 shocks feature 50% more piston surface area for reduced damping fade and improved bottom-out control at speed
• Includes JKS Quicker Disconnects for fast, easy transition between on-road and off-road sway bar configurations

Built and backed by JKS, this J-Spec system represents a complete, thoughtfully engineered suspension upgrade for Jeep Wrangler JL 4-Door enthusiasts who demand performance across all types of terrain. Fits select 2018-2026 Jeep Wrangler JL models.