99 suburban headlight adjustment

I just installed new headlights and need to adjust them. What distance and height from a wall should I park? Which screws adjust light height and angle?

Thanks,

Greg - Va

i just put new headlights on mine but im not sure the hight or distance from the wall they are supposed to be because i used a headlight aimer but the screws to adjust them are not the bolt type ones that stick up from the grill those just hold the lense part of the light to the mounting bracket. there are actually a couple of holes above the headlights in the top of the grill where the hood would be sitting if it were closed. if you look down them there are two screws for each light about and inch down from the grill, one about in the middle of the light for up and down adjustment and one off to the side for side to side adjustment. hope that helps i was trying to think of the best way to explain it but i dont know if it really made sense.