Rock Krawler JT45SB2-S1 4.5 Inch Silverback Long-Arm Lift System Stage 1

The Rock Krawler JT45SB2-S1 is the 4.5-inch Silverback Stage 1 long-arm suspension system, engineered to deliver a premium balance between daily drivability and serious off-road capability. This complete lift kit raises ride height by 4.5 inches while fundamentally transforming the suspension geometry of the Jeep Gladiator JT (gas models).

At the core of the Silverback system is a high-clearance 4-link long-arm front suspension paired with a triangulated 4-link rear assembly. This layout keeps the rear axle perfectly centered throughout the full suspension cycle, eliminates rear suspension bind, and allows for removal of the rear track bar. The elimination of cross-talk between the front and rear track bar arrangements results in a noticeably smoother highway ride.

Key Features:

• 4.5-inch lift for increased ground clearance and larger tire fitment
• High-clearance 4-link long-arm front suspension for maximum articulation and geometry correction
• Triangulated 4-link rear assembly — rear axle stays perfectly centered throughout the suspension cycle
• Eliminates rear track bar, removing suspension bind and improving ride quality
• X Factor Series adjustable lower control arms with a total of 90 degrees of misalignment
• Triple-rate front coil springs paired with quad-rate rear coil springs for excellent on-road comfort and off-road performance
• Coil springs engineered with proper free-length for articulation while maintaining spring seat contact under extreme flex
• Includes coil correction pads to reduce spring bow
• Includes track bar geometry correction to precisely center the axles
• Maintains standard JT rear load capacities

The Stage 1 designation indicates this system is configured without shocks, allowing you to pair the kit with your preferred shock absorber upgrade. The Silverback system is purpose-built for Jeep Gladiator JT gas models and delivers a comprehensive, geometry-correct solution whether you're towing on the highway, daily driving around town, or pushing hard on the trail.