Rock Krawler JL45X2LA-4DS1 4.5 Inch X Factor X2 Long Arm Stage 1 Lift Kit with Shocks for Jeep Wrangler JL 4-Door

The Rock Krawler JL45X2LA-4DS1 is a complete 4.5-inch front and rear long arm suspension lift kit engineered specifically for 2018-present Jeep Wrangler JL 4-Door (Unlimited) models. This Stage 1 system includes shocks and represents Rock Krawler's ultimate JL long arm platform, delivering maximum articulation and off-road performance without sacrificing daily drivability.

At the heart of this system is Rock Krawler's proven X Factor X2 independent 3-link design, deployed both front and rear. This geometry provides exceptional suspension articulation and off-road capability while maintaining stable, predictable on-road handling. The X2 rear suspension geometry features enhanced rear instant centers and roll centers for improved anti-squat characteristics and dynamic stability under load.

The rear of the system is built around the X2 high-clearance axle bracket system, which delivers 4.5 inches of additional ground clearance under the rear axle compared to stock. Rear upper shock relocation brackets are included to preserve full shock and suspension travel. Up front, heat shield thermal barrier products — applied OEM-style — protect the front control arm joints at the frame connection from exhaust heat damage.

Rock Krawler's industry-leading triple-rate coil springs provide the 4.5-inch lift height and improve on-road ride quality over the factory linear-rate springs. Correction pads are included to reduce the spring bow inherent in the factory JL setup, and front and rear track bar geometry corrections allow precise axle centering for uncompromised on-road handling. The system's double-adjustable upper control arms allow precision tuning of caster and pinion angle front and rear.

Key Features:

• 4.5-inch front and rear suspension lift for 2018-present Jeep Wrangler JL 4-Door (Unlimited)
• Independent 3-link long arm design front and rear for maximum articulation
• X2 rear suspension geometry with enhanced instant centers and roll centers
• 4.5-inch rear ground clearance gain via the X2 high-clearance axle bracket system
• Rear upper shock relocation brackets to preserve full suspension travel
• Triple-rate coil springs — improved on-road ride over OEM linear-rate springs
• Double-adjustable upper control arms for precision caster and pinion angle tuning
• Front control arm heat shields for OEM-style joint protection
• Correction pads to eliminate factory spring bow
• Front and rear track bar geometry corrections for proper axle centering
• Includes shocks (Stage 1 kit)
• Designed and manufactured in the USA by Rock Krawler Suspension

The Rock Krawler X Factor X2 Long Arm system is purpose-built for Jeep Wrangler owners who demand the best in both trail performance and street manners. Whether navigating technical rock terrain or cruising the highway, this suspension system delivers the geometry, clearance, and durability to handle it all.