That's odd, I'd expect there to be a vertical adjustment. The service manual certainly implies such.
I just went out and looked, and it appears to me there are 2 adjusters. Looking head-on at the passenger-side headlamp, there's one adjuster on the far right side, and another one underneath the assembly roughly inline with the split between the main headlamp and the turn signal.
But you've had the assembly removed, which is farther than I've gone.
Ryan