They mount direct to the old bulb socket, so that ensures your vertical and horizontal direction should be good.
I did level the cutoff line a bit, but you can do that from behind by turning the washer with some channelocks. The washer is keyed to the projector so turns the projector when you turn it.
This project was mostly a proof of concept experiment, which was a success. Now I am addicted to building headlights, so going to order a set of 3" projector lenses to swap into a different set of 2nd gen housings. The 3" projector should be a level up in light output over the 2.5s, which are excellent to begin with.
Also wondering if you couldnt fit dual projectors in a set of sport headlight housings. Having 4 55w HIDs burning would be badass for night driving on rural roads.
Would set it up so low beam is 2 bulbs, and high flips shield on 2 lo bulbs and kicks on other 2 bulbs.