RKS 3.5IN X FACTOR SUSPENSION STAGE 1 JL35XF-4S1

The Rock Krawler 3.5in X-Factor Suspension Systemis engineered for JL Unlimited owners building a Jeep around capability, control, and long-term durability. Designed specifically for the 4-door platform, this system focuses on proper suspension geometry, axle positioning, and predictable handling through the full range of suspension travel. Rock Krawler’s X-Factor design allows the Jeep to remain composed on uneven terrain while maintaining confident street manners, making it well suited for rigs that see both trail time and daily use.

Fully adjustable control arms allow precise correction of caster, pinion angle, and wheelbase, ensuring the suspension works as intended at its intended ride height. Dual-rate coil springs provide a controlled feel during normal driving while allowing the suspension to flex efficiently when the terrain becomes more demanding. Built with heavy-duty components to support the added weight of the JL Unlimited, this system serves as a dependable foundation for serious off-road use.