I changed tow vehicles in March and had Anderson installed at factory during annual maintenance. We are on the tail end of 7000 plus miles. After installation my thread count was the same on both sides. I noticed recently one chain had some sag to it. I looked at frame mounts and measured from rear cross joins and the brackets differ by about an inch. Maybe shifted during towing? I will adjust. What torque should the bracket bolts be? In the meantime, as long as tension in both chains is similar and taut, hitch will still perform desired function?