The Rock Krawler JT box kit for 2019 and newer Jeep Wrangler JT labeled 4.5in PX No Limits refers to a Pro-X No Limits 4.5-inch long arm component set for JT models. These box kit components are intended for 2019+ JT Wranglers and identify the parts supplied as part of the PX No Limits kit configuration and the stated model-year fitment.
Rock Krawler 2019+ Jeep Wrangler JT Box Kit JT 4.5in PX No Limits