I can't find a picture of mine installed but here are the brackets I made for my 2 ton for front air springs, I'm using them as helper springs.
https://goo.gl/photos/x8uvet8NAVJCW32KA
They bolt in using the original holes for bump stops and the bags I chose have an internal bump stop.
I'm using a front axle with an additional 2" of drop and custom springs with 2" of lift to get back to normal, this also helps make room for the air helper springs.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-