Rock Krawler Trail Runner long-arm suspension for 2018–present Jeep Wrangler JL 4-door delivers a 3.5-inch X Factor X2 trail-focused long-arm package designed for extended travel and rugged terrain. The Trail Runner configuration is specified for JL 4DR fitment, swapping factory components for long-arm geometry suited to off-road trail use while preserving compatibility with the stated chassis.
Rock Krawler 2018+ Jeep Wrangler JL 4DR 3.5in X Factor X2 Pro Trail Runner Long Arm Suspension