Searching_Ut wrote:
As was just mentioned, the ball adapter hooked up to your pin box can make the effective length of your pin box either 4 inches longer if the adapter is installed so that the ball socket is forward of the pin, or it can make the effective length 4 inches shorter if the ball socket is positioned behind the pin. When I used the Andersen hitch I had to install it so that the ball socket was aft of the pin or my pin box would hit my bed rails. I had plenty of clearance by turning it around, but it slightly decreased my turning. I couldn't turn quite as sharp without risk of hitting the front of the trailer into the back window of the cab. This isn't an issue if you have a long bed truck.
You have the right solution to fix the pinbox hitting the bed rails now you just need to do one more thing that will take care of the trailer nose to cab colliding issue. Get the Curt 4in gooseball extension. It replaces your inbed flip ball with one that will have the ball 4in closer to the tailgate. Pivot point remains unchanged like you have it to solve the pin of issue. The Curt solves the Cab issue. This what I do and it works.