I work for a P & P Trailer sales in Pasadena Texas. I am very familiar with gooseneck hitches. The one i installed on my own truck was made by Flip Over. There are no rails in the bed. The only thing you see is the ball and two upside down U type bolts that are for the saftey chains. You pull a lever under your driver side rear tire well and you can "flip over" the ball. Its totaly flush inside the bed. B & W is about the same. I reccommend both. And you DONT have to remove the bed. Reese, valley and other X brands dont make a very friendly installation.