How to aim headlights?

[Henway]

It's not in Bentley (only positioning to make gaps uniform) and I couldn't find anything while searching nor in Howto.
X feet from wall, center left and right where?

[delvec]

You may want to check out this link..


https://www.youtube.com/watch?v=GWvSWBlAwnI

[Henway]

Shortened from link--mark height and L/R locations of headlight on wall, back up 25'. Cycle suspension and make sure tire pressure is normal. Driver side should have cut off of bright light 4" below vertical, passenger 2" below.

[daven]

Best reference I've found. http://www.danielsternlighting.com/tech/aim/aim.html