I have a 2006 durango and have failed to find any adjustment screws other than the one underneath next to the 2 bolts that fasten the headlight.The headlights is a small phillips head screw on the top right near the front of the lense. Turning right raises the light, while loosen/left lowers the light. Thats all you need to do. The bolts on the bottom just hold the light to the truck, they don't need to be touched. On the fogs, there is a bolt going up and down near the rear with a spring around it. Tightening that will lower your fogs, loosening will raise them.