When I had my GMC 2500 it had a 6'bed and I put the coupler in the position to allow more clearance between the trailer and the cab. I also had a low profile roll up bed cover. The bottom of the pin box on turns over 60 degrees would contact the bed cover track and damage it. I did raise the ball up one level and it still made some contact. The next season I got my GMC 3500 and it had a 6'5" bed so I turned the coupler around and have had no issues.
So be aware pushing the pin box back in the bed will also affect the clearance to the sides. Now if I did not have a bed cover rail there would of been no issue but its something to look out for. Now this was with the stock pin box. I did upgrade to the MorRyde cushioned pin box and it does have a different profile that may have solved my problem of contact but I upgraded with the new truck so I will never know. Anderson is great as its so light the wife can install it.
