I agree with MT BOB, in fact if you can, order exactly what you want. If you are looking for used, do all the homework that you can do. Years ago I purchased a used 3/4 ton Chevy van which turned out to be a half ton with bigger wheels and tires but no floating axles. Didn't do what I wanted it to do but it was my fault for not doing more research. Today with all the bells and whistles you really need find what you are looking for and ignore all the lipstick that they are putting on the new vehicles. And, don't listen to the sales people. Good luck,
Curly