I have an off-road bumper that is roughly 80 lbs. I received just under 2” of lift at the 0 setting. I’m at the middle setting now with a small strut top spacer and am sitting just shy of 3” lift trucks on 35s. When I installed the bumper I lost 1/4” of lift roughly. I am using bilstein 5100 struts with eibach springs but basically all the same as the eibach struts you have and the same springs. If you look at my posts you can find my write up of my truck
If you are talking about the fronts, with the Eibach shocks, I would go with at least the 4th clip setting if not the top/5th if I were you.
I have the factory front bumper and when all was said and done (settled) I have a under 2" front lift at the 2nd clip ring setting, which back when I did mine (a year ago?) they said that would give me 3.5" lift! LoL...
I just noticed in their latest installation instructions they have re-adjusted what settings they say will give what amount of lift. Or, did Eibach redesign the shocks entirely?
Back when I did mine, they said the bottom was 2.75" lift, #2 was 3.5", #3 should only be used with heavy bumbers and ride quality would degrade, and both #4 & #5 said "DO NOT USE" in the instructions I got with my kit.
It would have been nice to know how far off their early "guesses" were when I did mine. I HATE doing stuff twice. If they were a little closer to what I actually got, I wouldn't complain...
You WILL have a lot of spring pre-load at these upper setting as even on #2 slot, I did end up having to compress the assembled strut slightly to get the bottom bolt through during mounting.
I still like them, and the rear springs/struts REALLY help the truck carry a load (1700# is easy now, not even bottomed)!
But, that is an awfully expensive 1.75" lift on the front there, and a lot of work to get it too.