Here is a 3" lift, 37s with 1.25" body lift. So 4.25" total.
3" of lift was fine until I was loaded down for overlanding, then the rear door would rub the bumper and front tires would rub the fender support when stuffed.
I added 1.25" body lift to resolve those issues without changing my caster.
Also be aware that heavier tires will wear out components like ball joints, unit bearings, drag link ends, tie rod ends, etc. So have a plan for when they wear out.
If going off road there's a lot that needs to be beefed up, again have a plan before you break stuff.
His- 2014 JKUR
Hers- 2018 JK
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Retired- 2016 JKWW
Retired- 2013 JKU