Well, I was notified that my 2017 Jeep Grand Cherokee Trailhawk was totaled on Friday last week. I headed to the dealer to find a replacement and a Gladiator Overland was on the lot. Sadly, there were no JGC Trailhawks were available, so I decided to get the Gladiator. My birthday was on August...
I just got my Jeep Gladiator and had Yakima roof racks on my G.Cherokee that I will be moving to the Gladiator.
I found these bed adapters
https://www.rei.com/product/150178/yakima-bedrock-hd-truck-rack-towers
I haven't ordered them yet and I don't have the cargo management rails on mine, but...