With our light weight 5th wheel, I have a second set of bed rails that puts the pin 52" from the rear window or 12" behind the rear axle of our F250 CC SB. I can't tell the difference towing except that I can make full lock U-turns now with no worries. I don't recommend this as it goes agains all the manufacturers recommendations for loading a vehicle. So does loading the trunk of the car with groceries but some folks do it anyway. All I'll say is it works great for "us". Some of the campgrounds we frequent are pretty tight and require some sharp maneuvering to get into a spot between the trees.