Rock Krawler JK25UA-4 2.5" Ultimate Adventure Mid Arm System without Shocks for 07-18 Jeep Wrangler JK Unlimited 4-Door

Total Geometry Control (8-Arm Upgrade): By replacing every factory control arm with an solid steel version, front fully adjustable, you gain the ability to perfectly center your axles and optimize your pinion angles. This is essential for protecting your driveshafts and ensuring the Jeep tracks straight.

Maintenance-Free Pro Flex Joints: These arms feature Rock Krawler’s proprietary joints that are 100% service-free and silent. They provide massive articulation for the trail without the squeaking or the need for constant greasing required by traditional aftermarket joints.

Indestructible Lateral Support: The included 1.5" O.D. solid steel adjustable front track bar is a massive upgrade over the hollow factory unit. It keeps the front axle perfectly centered and provides a firm, responsive steering feel that doesn't "give" under the pressure of larger tires.

Triple-Rate Spring Technology: These coils offer three distinct spring rates, ensuring a soft "street" ride, a stable "trail" rate, and a firm "bottom-out" zone. This allows your Jeep to handle varying loads and terrain without sacrificing daily driver comfort.

"Abuse It" Lifetime Warranty: Rock Krawler stands behind their engineering with a lifetime warranty on all hard parts (arms and track bars). If you manage to bend or break a component during off-road use, they will replace it, making this a secure long-term investment for your JK.

Many states have laws that limit the maximum height of a lifted vehicle. Never exceed the legal height limit.