Rock Krawler 3.5" Ultimate Adventure Mid Arm System for 07-18 Jeep Wrangler JK

Total Geometry Control (8-Arm Upgrade): By replacing every factory control arm with an adjustable solid steel version, you can perfectly dial in your front caster and rear pinion angles. This is essential at a 3.5" height to ensure stable steering and to protect your driveshafts and U-joints from premature wear.

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 technical trails 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 nearly indestructible compared to the hollow factory unit. It keeps the front axle perfectly centered and provides a firm, responsive steering feel even when running 35" or 37" tires.

Triple-Rate Spring Technology: These coils provide three distinct spring rates, ensuring a soft "street" ride for daily driving, a stable "trail" rate for off-camber obstacles, and a firm "bottom-out" zone to protect your investment during high-speed impacts.

"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 worry-free, long-term investment.

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