JKS JSPEC187FRS J-Krawl 3.5" Lift Suspension System Fox 3.0 FRS IBP DSC Coil Kit for Jeep Wrangler JL 4-Door

The JKS JSPEC187FRS J-Krawl Suspension System is a purpose-built, 3.5-inch lift package engineered for the 2018–2023 Jeep Wrangler JL 4-Door. Designed for serious off-road enthusiasts who demand both trail capability and on-road composure, this complete system pairs premium Fox 3.0 Factory Race Series (FRS) Internal Bypass (IBP) shocks with heavy-duty rate coil springs for a balanced, high-performance ride in all conditions.

Key Features:

• 3.5" Lift Height – Provides increased ground clearance and room for larger tires while maintaining proper geometry
• Fox 3.0 FRS IBP Remote Reservoir DSC Front Shocks – Factory Race Series shocks with Internal Bypass technology and Dual Speed Compression (DSC) adjuster for on-the-fly tuning of compression damping
• Fox 3.0 FRS IBP Piggyback DSC Rear Shocks – Piggyback reservoir design increases oil and gas volume for improved heat dissipation and consistent damping performance on extended trail runs
• Heavy-Duty Rate Coil Springs – HD-rated coils engineered to support the added weight of common JL accessories such as bumpers, armor, and skid plates while maintaining ride quality
• Rubber Suspension Components – Durable rubber bushings used throughout for a compliant, quiet ride suitable for daily driving
• Complete J-Krawl System – JKS's fully integrated suspension solution, engineered as a cohesive package for predictable handling both on and off the trail

The Fox 3.0 Internal Bypass shock absorbers deliver class-leading damping performance by allowing fluid to bypass internal zones at different points in the stroke, providing a plush initial feel over small bumps while maintaining controlled damping through larger hits. The Dual Speed Compression (DSC) adjuster allows quick tuning between a comfort-oriented street setting and a firmer, more controlled off-road setting without tools.

The JKS J-Krawl system is designed to work as a complete, matched assembly — optimizing shock valving, spring rates, and geometry corrections together for results that individual components cannot replicate. Ideal for Wrangler JL owners who frequently switch between highway driving and technical off-road terrain.