Rock Krawler JL45AX2LA-2CS 4.5 Inch Adventure-X Long Arm Coilover Suspension System

The Rock Krawler JL45AX2LA-2CS is a 4.5-inch Adventure-X Long Arm Coilover Suspension System engineered to deliver the ideal balance between daily street performance and serious off-road capability. This comprehensive lift system pairs a full high-clearance 4-link long arm front suspension with a high-clearance independent 3-link rear long arm suspension for an unmatched combination of on-road comfort and trail-dominating articulation.

The Adventure-X designation reflects Rock Krawler's 100% service-free Adventure Series joints, featured across all adjustable control arms. These joints isolate road vibrations, provide high misalignment tolerance, and eliminate the need for routine greasing — delivering long-term durability with minimal maintenance.

The rear suspension utilizes Rock Krawler's proven X2 geometry with enhanced rear instant centers and roll centers, while the high-clearance X2 axle bracket system adds 4.5 inches of ground clearance under the rear axle compared to stock. Rear upper shock relocation brackets preserve full shock and suspension travel throughout the lift.

Rock Krawler's triple-rate coil springs deliver superior on-road ride quality over factory linear-rate springs, while maintaining proper free-length for maximum off-road articulation. Included spring correction pads reduce inherent factory spring bow, and front and rear track bar geometry corrections allow precise axle centering for handling that never compromises on-road drivability.

Key Features:

• 4.5-inch lift height with Adventure-X long arm coilover configuration
• High-clearance 4-link front long arm suspension
• High-clearance independent 3-link rear long arm suspension with X2 geometry
• 100% service-free Adventure Series joints on all control arms
• 4.5 inches of additional ground clearance under the rear axle via X2 axle bracket system
• Triple-rate coil springs for superior on-road comfort and off-road articulation
• Spring correction pads to reduce factory spring bow
• Front and rear track bar geometry corrections for precise axle centering
• Rear upper shock relocation brackets to maintain full suspension travel
• Fully serviceable and rebuildable RRD shock components

Installation Notes:

• Requires welding of front and rear long arm frame-side mounts
• Requires removal of OEM frame-side lower and upper front and rear control arm mounts
• Requires removal of OEM axle-side rear lower control arm and track bar mounts
• Requires modifying OEM rear shock mounts and welding of raised rear upper shock mounts
• Requires welding of new coilover mount on the axle
• A new front C.V. driveshaft is recommended if front shock maximum extended length exceeds 29 inches
• Installation of limiting straps is recommended to prevent over-extension of suspension components