Rock Krawler 4.5" Adventure - X "No Limits" Mid-Arm Suspension System for 18-26 Jeep Wrangler JL Unlimited 4-Door Rubicon
Maintenance-Free Articulation: The Adventure-X series joints are 100% service-free and silent. They offer 70∘ of misalignment, allowing the suspension to flex freely without the need for constant greasing or rebuilds common with other high-performance joints.
Precision Geometry Tuning: With eight fully adjustable control arms and an adjustable front track bar, you can perfectly dial in your caster, pinion angles, and axle centering. This eliminates "death wobble" risks and ensures a vibration-free ride at highway speeds.
Superior Ride Quality: The kit uses tuned Triple-Rate Coil Springs on all four corners. Unlike standard linear springs, these provide a plush initial feel for small bumps while ramping up support for heavy loads and high-speed impacts.
"No Limits" Sway Bar Integration: Designed specifically for the Rubicon’s electronic sway bar, the included links allow for maximum articulation without binding the factory motor, ensuring your electronic features aren't the bottleneck in your build.
Future-Proof Growth: The system is fully upgradable. If you eventually decide to move from a mid-arm to a full Rock Krawler Long Arm system, the components are designed to be the foundation for that transition, protecting your initial investment.
Many states have laws that limit the maximum height of a lifted vehicle. Never exceed the legal height limit.
The Rock Krawler 4.5" Adventure-X "No Limits" Mid-Arm System is a premier suspension solution engineered for Jeep Wrangler JLU owners who refuse to compromise between daily drivability and extreme trail capability. This comprehensive kit stands out by addressing the inherent "bind" found in factory suspension geometry, replacing all eight control arms with high-clearance, adjustable Adventure-X arms. These arms feature Rock Krawler’s signature service-free joints, which provide a staggering 70∘ of total misalignment. By combining these with triple-rate coil springs, the system ensures your Jeep remains level and composed on the highway while offering the most aggressive articulation available in a mid-arm configuration.
The "No Limits" designation is a specific nod to Rubicon owners, as the kit includes specialized front sway bar links designed to work seamlessly with the factory electronic disconnect. This allows for a "press-and-play" experience on the rocks, ensuring you get the maximum possible travel without needing to manually tinker with pins or brackets. Whether you're aiming to run 37-inch tires with room to breathe or pushing toward a 40-inch setup, this system provides the geometry correction and structural integrity needed to handle the increased leverage and weight of a built JLU.
- (4) Triple-Rate Coil Springs
- (2) Front Adjustable High Clearance Lower Control Arms
- (2) Front Adjustable Upper Control Arms
- (2) Front Spring Pads
- (1) Adjustable Front Track Bar
- (2) "No Limits" Front Sway Bar Links
- (2) Rear Adjustable High Clearance Lower Control Arms
- (2) Rear Adjustable Upper Control Arms
- (2) Rear Spring Pads
- (2) Adjustable Rear Sway Bar Links
- (1) Bolt-on Rear Track Bar Relocation Bracket
- Shocks Included: Without Shocks or With Shocks
- Lift Height Range: 3 - 4.5 inch
Jeep Wrangler Unlimited 4-Door (JL)
- 2026 Jeep Wrangler Unlimited 4-Door (JL)
- 2025 Jeep Wrangler Unlimited 4-Door (JL)
- 2024 Jeep Wrangler Unlimited 4-Door (JL)
- 2023 Jeep Wrangler Unlimited 4-Door (JL)
- 2022 Jeep Wrangler Unlimited 4-Door (JL)
- 2021 Jeep Wrangler Unlimited 4-Door (JL)
- 2020 Jeep Wrangler Unlimited 4-Door (JL)
- 2019 Jeep Wrangler Unlimited 4-Door (JL)
- 2018 Jeep Wrangler Unlimited 4-Door (JL)
Rock Krawler 4.5" Adventure - X "No Limits" Mid-Arm Suspension System Options
| Part Number | Catalog # | Shock Options | Engine Options | Price | |||||
|---|---|---|---|---|---|---|---|---|---|
| JL45AXMNL-4 | 16189-4557 | without Shocks | 2.0/3.6L Engine | $2,756.85 | |||||
| JL45AXMNL-4S1 | 16189-4558 | with RRD 2.25" IFP Shocks | 2.0/3.6L Engine | $4,018.27 | |||||
| JL45AXMNL-4CS | 16189-4559 | with RRD 2.625" RR Coilover Shocks | 2.0/3.6L Engine | $6,796.81 | |||||
| JL45AXMNL-392 | 16189-4614 | without Shocks | 392 6.4L Engine | $2,936.90 | |||||
| JL45AXMNL-392CS | 16189-4616 | with RRD 2.625" RR Coilover Shocks | 392 6.4L Engine | $6,807.71 | |||||
| JL45AXMNL-392S1 | 16189-4615 | with RRD 2.25" IFP Shocks | 392 6.4L Engine | $4,198.32 |
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