The Rock Krawler X Factor Pro aluminum suspension system is a dimensional kit for 2007–2018 Jeep Wrangler JKU 4-door applications with a 4.5-inch lift. This aluminum long-arm system replaces factory geometry to support larger wheel travel and articulation while maintaining chassis compatibility across the stated Jeep Wrangler JKU years and four-door configuration.
Rock Krawler 07-18 Jeep Wrangler JKU 4DR 4.5in X Factor Pro Aluminum System