Front Airbag suspension info

[zicc1835]

i have a ECE 4-6 drop kit and plan to use bags in the front , with the drop spindles from the kit when i do the conversion i will do ball joints and rebuild the upper and lower control arms from the kit. I am wondering how the difference in the hight will affect the tow in and out or caster camber . also if i should replace the same amount of shims that are present on the A arms all advice is much appreciated I have replaced drop springs before ....but will be a first for a redo on all with bags