Lippert 1716 vs. Chevy 2500 Bed Rails

On a 2009 Silverado 2500 HD I had to set my Reese hitch up almost to the top holes to prevent the 1716 from hitting the bed rails in a tight turn. Made my Denali fifth wheel sit nose high. The unfortunate way I found out it would hit with the hitch height set mid height, a worker at the dealer we bought our fifth wheel trailer from hit the bed rails with the pin box. He was backing into the service bay and cut it tight and it hit, $900.00 of damage. They paid for repair.
Anyone with one of the bed tonneau covers that has a rail system further limits the pin box travel.