I have a short box with a flush mounted tool box and cannot see the ball, however I can always hook up on the first try. I just use the three bolts in the tail gate to make sure I am centered, then I have learned how close the trailer sits to the tool box and it works every time now. Also if that doesn't work you can leave the hitch down slightly, just so you can feel when it slides onto the greased ball. Using this method the trailer wheels must chocked properly so that you don't bend your jack or push it off of a block if you use one.