Hmmm... According to the RV Upgrades website, there's some question whether it will fit the Wrangler without tow package, but does fit the Gladiator with or without: https://www.rvupgradestore.com/Jeep-...it-p/56210.htm
I'm in the process of gathering all I need to hook up our '18 JLU and will be checking this out. Have the Invisibrake and all the wiring in our Xterra, but need a baseplate and the harness. Will leave the baseplate (proprietary anyway, of course) and harness in the Xterra, in case we go back to using it.