Rock Krawler's JT box kit entry for 2019 and newer Jeep Wrangler JT described as 4.5in PXNL-COMP denotes a Pro-X No Limits competition-style 4.5-inch long arm component set for JT applications. The listing identifies the suspension parts intended for 2019+ JT Wranglers that correspond to the PXNL-COMP kit configuration and fitment range.
Rock Krawler 2019+ Jeep Wrangler JT Box Kit JT 4.5in PXNL-COMP