I've looked in the owners maunal and back issues, but I haven't found the specs on this.......... I recentely installed new headlamp adjustment screws. Does anyone have any specs on how to adjust them properly now. My Yukon's after market fog lamps came with a sheet on how to adjust them. You park the car x feet from a level garage door then move the lamps till they line up with spots your measured out on the door. Thanks for the help........ --Jonathan #000697 gatewayaag [at] mindspring [dot] com