4.5 Inch Silverback Long-Arm Suspension System for Jeep Gladiator JT Gas Models Rock Krawler

Rock Krawler 4.5 Silverback Long-Arm Suspension System for Jeep Gladiator JT (Gas Models)

The Rock Krawler 4.5 Silverback Long-Arm System is the ultimate performance upgrade for your Jeep Gladiator JT. Designed for serious off-roaders who still drive their Gladiator daily, this system blends high-clearance off-road performance with on-road comfort and precision.

At the heart of this kit is a high-clearance 4-link front suspension and a triangulated 4-link rear setup, providing maximum articulation and control without the bind of traditional track bar setups. The rear triangulation eliminates the rear track bar entirely for smoother highway handling and superior axle centering.

This kit features Rock Krawler's fully service-free long arms with Adventure Series joints. These advanced joints isolate road vibration like an OE bushing, while offering high misalignment capability and long-lasting performance with zero maintenance.

No grease. No noise.

No compromise. The Adventure-X Mid-Arms offer 70 degree of misalignment and fully adjustable upper and lower control arms for precision tuning of your Gladiator's caster and pinion angles.

Whether you're crawling rocks or cruising pavement, you'll notice the difference. To ensure unmatched ride quality and off-road capability, the system includes triple-rate front coil springs and quad-rate rear coil springs.

These coils are engineered with the proper free-length for articulation while maintaining spring seat contact even under extreme flex. All Rock Krawler JT suspension kits include coil correction pads to reduce spring bow and track bar geometry correction to perfectly center the axles.

When we design a system, our goal is to provide you with the most comprehensive solution and the best geometry, install exceptional value, and be the foundation for every adventure whether it be on the Street, in tow or down a trail! Thank you for considering Rock Krawler Suspension.

System Benefits:

• Excellent Highway Ride and Handling
• The Best Off-road Ability of All Mid-Arm Systems
• Improved Rear Roll Center Tuned Front and Rear Coil Springs
• Spring Correction Seats
• Vehicle Lean Correction
• Upgradable to RK Long-Arm System
• Best Technical Support in the Industry
• Jeep Remains Level on All 4 Corners
• Lifetime Warranty Coverage

System Includes:

• (1) Weld-on Front Long-Arm Mounting System
• (1) Heat Shield Products Sticky Shield Kit
• (1) Front Adjustable Anti-wobble Track Bar
• (2) High Clearance Adjustable Front Lower Control Arms
• (2) Adjustable Front Upper Control Arms
• (1) GEN II Front Sway Bar
• (2) Triple-rate Front Coil Springs
• (2) Quad-rate Rear Coil Springs
• (4) JT Coil Spring Correction Seats
• (2) Weld-on Rear Frame Side Long-Arm Mounts
• (2) Rear High Clearance Adjustable Lower Control Arms
• (2) Rear Adjustable Upper Control Arms
• (2) Rear Spring Pads
• (2) Adjustable Rear Sway Bar Links
• (1) Rear Bolt on Pro-X Cradle (Welding optional)
• (Depending on shock package chosen)
• Bump Stops Are Included with All Shock Options
• If you choose no shocks, bump stops can be purchased separately - RK07464

Shock Information:

• All RRD Shocks and Coilovers are designed and built in-house
• Generic Front Shock Length - 18.31 inch Collapsed/30.31 inch Maximum Extended
• Generic Rear Shock Length - 19 inch Collapsed/31 inch Maximum Extended
• Bilstein 5100 Shocks
• A great pairing with our multi-rate coil springs
• Maintenance Free RRD 2.25 IFP Shocks
• 2.25 inch O. D. Military Grade Hard Anodized Fluted Aluminum Shock Body
• Cooling Surface Area of a 2.5 inch Shock
• 3/4 inch 17-4 PH Stainless Steel, Hard Chrome Plated and Polished Shaft
• Billet Aluminum Valve Circuit and Components
• Dual DU Shaft Bearings and Double Redundant Sealing Methods
• Serviceable/Rebuildable/Revalveable
• More Info

Wheel Fitment:

• Sport and Overland Wheel Fitment Recommendations 37 inch/38 inch Tall Tires - Recommend 3.5 inch of Back Spacing Mojave Fitment Recommendations 37 inch Tall Tires - Recommend 4.5 inch of Back Spacing 40 inch Tall Tires - Recommend 3.5 inch of Back Spacing

Tire Fitment:

• Sport and Overland with
• Full OEM Fenders 37 inch Tall Tires (3 inch Bump Stop Height Recommended) Sport and Overland with Trimmed or High Lined OEM Fenders 38 inch Tall Tires (3 inch Bump Stop Height Recommended) Mojave with
• Full OEM Fenders 37 inch/38 inch Tall Tires (3 inch Bump Stop Height Recommended) Mojave with Trimmed or High Lined OEM Fenders 40 inch Tall Tires (3 inch Bump Stop Height Recommended)

General Notes:

• All lift heights based on Rubicon models for standard style build (i.e. front bumper and winch, rear bumper and full size spare).
• If building an extended off-road and expedition travel or heavily upfitted build in the back, we recommend upsizing 1 inch in coil lift height for the rear.
• We recommend a new front driveshaft if you plan to off-road routinely.
• (Adam's Driveshaft, Tom Woods, J.E. Reel) Optional PRO - X Cradle IS Available FOR Purchase When Using Dynatrac, Ultimate Dana 60 Rear Axles, Currie LOW Pinion Rear 60, Fusion 4x4 Axles - Dynatrac XD60 rear axle use: RK08078 and Ultimate Dana 60 rear axle and Currie Low Pinion 60 Rear use: RK08068, Fusion has their own line of trusses, please be sure to order the truss with their rear axle and remove our supplied truss from the order.
• We recommend welding the rear cradle for use with 37 tires and above.
• Requires welding of the Front Long Arm mounting system.
• Requires removal of the OEM frame side lower front control arm mounts.
• Requires removal of the OEM frame side front upper control arm mounts.
• Requires removal of the OEM axle side track bar mount.
• Recommended to install limiting straps to avoid over extension of suspension components after vehicle is all set up.