The Rock Krawler JT box kit for 2019 and newer Jeep Wrangler JT described as a 4.5-inch X Factor kit identifies the suspension component set for JT applications. These box kit components correspond to a 4.5-inch X Factor long arm configuration intended specifically for 2019+ JT Wrangler models, supplying the parts associated with that kit designation and fitment range.
Rock Krawler 2019+ Jeep Wrangler JT Box Kit JT 4.5in X Factor