As Grit Dog mentioned, the size I am looking for is not manufactured by any of the larger Hitch companies. I called Curt, Equalizer, reese, Blue Ox, and BulletProof. The 2"x18" is made. Manufacturers stated the sleeve is the option for those wanting to use the 2"x18" in a 2.5" receiver.
I did mention to BulletProof about making one...they said they have received calls about a longer one, but no immediate plans to make an 18" one.
Unless there's an option that is doable for me (not making my own...btw...wonder what size welder would be needed to penetrate 2" sold steel?), it looks like I'll go with a 2" and use the sleeve/reducer that came with my truck. I'm going to add a hitch clamp to reduce any play/slop from the use of the adapter.
Thanks for the input!
