The Palomino/Sabre line has the best factory rear racks in the business. A 500# rating. It can be folded up via a hitch pin arrangement.
When I toured the factory, the plant manager told me the the fold up design replaced a slide out design that was trouble prone. It seems that road debri/salt etc. was causing the slide versions to become stuck.
I have had mine since 2009 and use it a lot. In fact I semi permantly mounted a 5 cubic ft. freeezer on it to let us carry more food on our remote boondocking trips.
I have carried lots of other things on it as well. All the way from bales of straw to cages of birds to bikes to coolers to you name it.
At camp it often serves as a workbench for changing the generators oil.
It is a great feature to have.