Rock Krawler 2018+ Jeep Wrangler JL 2-Door / JLU 4-Door Adventure-X Rear Long Arm Upgrade

Rock Krawler is well-known for making some of the most robust suspension components for off-road vehicles, and their Adventure-X Rear Long Arm Upgrade for the 2018 and newer Jeep Wrangler JL (both 2-door and 4-door JLU models) continues that tradition. This kit is designed to significantly improve your Jeep's rear suspension geometry, especially when you're running taller tires or pushing your rig on challenging terrain. By extending the length of the control arms, this upgrade helps to correct caster and pinion angles, which can become problematic with lift kits, leading to a more stable and predictable ride both on and off-road.

The Adventure-X system utilizes a unique, high-clearance, adjustable mounting bracket that bolts directly to the frame. This bracket allows for precise adjustment of the long arm position, ensuring optimal suspension performance and geometry correction. The arms themselves are built from solid steel tubing and feature Rock Krawler's proprietary R-Flex joints at the frame end. These joints offer a wide range of motion, allowing the suspension to articulate freely without binding, while also providing a comfortable ride on pavement. The differential end of the arms uses a standard heavy-duty ball joint for durability and ease of service. This combination of advanced geometry correction and durable components means your Jeep will handle better, articulate more, and be more stable over rough terrain.

This upgrade is a substantial modification aimed at serious off-road enthusiasts who want to maximize their Jeep's rear suspension capabilities. It's important to note that this is a rear long arm upgrade kit and is intended to be installed on a vehicle that already has a lift kit installed. For the best results and proper installation, it is recommended to consult the manufacturer's detailed installation instructions, as precise alignment and adjustments are crucial for optimal performance and safety.