Lamps are easy to adjust. The "manual adjust" dimensions are right in the shop manuals. A wall at 20-25 ft or whatever it is, and a couple of pieces of tape
You can download shop manuals...........here
http://www.forabodiesonly.com/mopar/showthread.php?p=1970088617
http://www.mymopar.com/index.php?pid=31
