The Suby has a unibody. Being raised around farm equipment, it is, to me, mind bending that a unibody is considered sufficient to attach a receiver hitch to. Here is a video showing the install: https://youtu.be/kOAJo84YbiQ.
I really like the Suby, so Iām not commenting from an negative viewpoint. Just know what it is and consider my comments as an input along the way!