Rock Krawler 07-18 Jeep Wrangler JKU 4DR / Wrangler JK 2DR UPG. JK X Factor X2 Long Arm

The Rock Krawler JK X Factor X2 Long Arm system uses 1.75-inch, 0.250-inch wall thickness DOM tubing for its control arms. This robust construction is key for handling the stresses of serious off-road driving and trail abuse. This isn't just about making your Jeep look tough; it's about fundamentally changing how your suspension performs when you're far from the pavement.

This long arm upgrade is designed to correct suspension geometry that can become compromised when lifting a Jeep Wrangler JK or JKU. By extending the length of the control arms, the system helps to improve caster angles, which is crucial for maintaining proper steering feel and stability, especially at higher speeds or on uneven terrain. The X Factor X2 system also allows for greater articulation, letting your wheels stay planted on the ground over obstacles for improved traction. It's a comprehensive solution for those looking to maximize their Jeep's off-road capability.

When installing a long arm kit like this, you're looking at a significant suspension modification. It's designed to be a direct bolt-on upgrade, meaning no welding is required, but it does involve replacing your factory control arms with these much longer units, along with new mounting brackets. This system is a popular choice for Jeep owners who are building their rigs for extreme trail use and want a suspension that can keep up.