The Replacement Hardware for Roadmaster EZ4 Base Plate Kit # RM-521440-4HK includes the mounting hardware for the Roadmaster Crossbar-Style Base Plate Kit # RM-521440-4. I have included a picture of what this includes for you to check out. view full answer...
It sounds like you're referring to the arms that come out of the base plates and yes, the Roadmaster Direct-Connect Base Plate Kit - Removable Arms # RM-521453-5 comes with those arms; it actually comes with everything you would need for a complete base plate kit that will allow you to connect directly to Roadmaster tow bars that are compatible with direct connect base plates.
A complete flat towing kit consists of base plates, a tow bar, tow bar wiring, supplemental braking system and... view full answer...
You will need the Custom Mounting Brackets # RM34RR for your 2020 Jeep Gladiator along with the Roadmaster Exact Center Steering Stabilizer # RM72ZR. view full answer...