Rock Krawler Suspension JL35FS-4D 3.5 Inch Flex System Lift Kit

The Rock Krawler JL35FS-4D 3.5 Flex System is engineered for Jeep Wrangler JL Unlimited owners seeking a bolt-in suspension upgrade that delivers serious off-road capability without compromising daily drivability. This complete lift system combines precision-engineered components with Rock Krawler's proven suspension technology to provide 3.5 inches of lift for aggressive tire fitment and improved trail performance.

Key Features:

• X Factor Series adjustable lower control arms with 90 degrees of misalignment capability to eliminate factory bind
• Triple-rate coil springs provide 3.5 inches of lift while improving ride quality over factory linear-rate springs
• Clears up to 40-inch tires depending on wheel backspacing and model configuration
• Front and rear track bar geometry corrections for proper axle centering and handling
• Spring correction pads reduce spring bow inherent in factory setup
• Generic shock specifications: Front 17.8 inches collapsed/29.3 inches extended, Rear 18.3 inches collapsed/30.3 inches extended
• Complete bolt-in installation with minimal maintenance requirements

This system is designed specifically for Jeep Wrangler JL Unlimited 4-door models and delivers the durability and performance expected from Rock Krawler's reputation in the off-road suspension market. The triple-rate coil design provides progressive spring rates that enhance both on-road comfort and off-road articulation, while the adjustable control arms allow for proper suspension geometry at lifted heights.