Rock Krawler 2021+ Jeep Wrangler JLU 4DR (392) 4.5in X Factor (No Limits) System - Stage 1

The Rock Krawler 4.5-inch X Factor (No Limits) System for the 2021+ Jeep Wrangler JLU 4-door, specifically the 392 model, uses 2.5-inch diameter, triple-rate coil springs. This system is designed to provide significant suspension travel and capability for off-road use while maintaining a comfortable ride on the street. It’s a comprehensive package aimed at enthusiasts looking to significantly upgrade their Jeep's off-road performance and stance.

This Stage 1 system includes a variety of well-built components to achieve its 4.5-inch lift. You get front and rear triple-rate coil springs, front and rear adjustable lower control arms, front and rear sway bar disconnects, a front track bar, a rear track bar bracket, and a front stainless steel brake line. The adjustable lower control arms allow for fine-tuning of caster and pinion angles, which is crucial for proper suspension geometry after a lift. The triple-rate springs are engineered to offer a plush ride over smaller bumps while still providing the necessary support for larger impacts and articulation off-road. The included sway bar disconnects make it easy to disengage the front sway bar for increased wheel travel when you're tackling challenging terrain.

Installation of this system involves replacing many of the factory suspension components. It's recommended to have a solid understanding of suspension geometry and the proper tools for alignment after installation. The system is designed to integrate with the Jeep Wrangler JLU's factory mounting points where possible, but some modifications may be necessary. This system is a substantial upgrade for those serious about off-roading and wanting to maximize their Jeep's potential.