2003 silverado headlight adj

OK Guys... I am tired of getting "flipped off". I bought a 2003 Silverado that the first owner had the back lowered 2 inches to make the truck level - I am finding that the headlights hit the rearview mirror on the poor people in front of me.. I have looked but do not really see a way to adjust the light buckets???? I am a 54 year old Firefighter that usually can find his way around a car - but this has got me tonight... please email me at [email protected] if you know how to Lower the lights...

found it... on top of the headlight bucket there is a small 1/4 nut - turn it clock wise and the light lowers - Now I want to carry this wrench and "Fix" those other idiots that drive behind me - now that I am NOT part of their group any longer,