Rock Krawler 4.5" Silverback "No Limits" Long-Arm Suspension System for Jeep Gladiator (Gas Models)
The Rock Krawler 4.5" Silverback "No Limits" Long-Arm System is the ultimate performance upgrade for your Jeep Gladiator Rubicon. 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 "No-Limits" Front Sway Bar Links is designed to work seamlessly with the factory electronic sway bar disconnect found on Rubicon models. Featuring CNC-machined billet aluminum centers and Made-in-USA FK heims — press the button, hit the rocks, and go. 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° 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.
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System Benefits:
- Excellent Highway Ride and Handling
- The Best Off-road Ability of All Mid-Arm Systems
- Improved Rear Roll Center
- Tuned Triple-Rate Coils
- 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
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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) "No Limits" 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)
- (2) Rear Triangulated Upper Arms
(*DEPENDING ON SHOCK PACKAGE CHOSEN*)
- Bump Stops Are Included with All Shock Options
- IF YOU CHOOSE NO SHOCKS - BUMPSTOPS CAN BE PURCHASED SEPARATELY - RK07464
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Shock Information:
- All RRD Shocks and Coilovers are Designed and Built in-house
- Generic Front Shock Length – 18.31” Collapsed/30.31” Maximum Extended
- Generic Rear Shock Length – 19” Collapsed/31” Maximum Extended
Bilstein 5100 Shocks
- A Great Pairing with Our Multi-rate Coil Springs
- Maintenance Free
RRD 2.25" IFP Shocks
- 2.25” O.D. Military Grade Hard Anodized Fluted Aluminum Shock Body
- Cooling Surface Area of a 2.5” Shock
- 3/4” 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
- Built in-house
- Serviceable/Rebuildable/Revalveable
- More Info
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Wheel Fitment:
Rubicon Fitment Recommendations
- 37” Tall Tires – Recommend 4.5” of Back Spacing
- 40” Tall Tires – Recommend 3.5” of Back Spacing
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Tire Fitment:
Rubicon with Full OEM Fenders
- 37”/38” Tall Tires (3” Bump Stop Height Recommended)
Rubicon with Trimmed or High Lined OEM Fenders
- 40” Tall Tires (3” Bump Stop Height Recommended)
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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 "overland style" or heavily up-fitted build in the back, we recommend upsizing 1” 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.
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