I would do the one for the 4" that ORD recommended, not because they did but the numbers work for your setup best.Pulled the shocks, rotated the tires and set it down, on my articulation ramp.View attachment 442368
Did this with and with out the sway bar. Losing the sway bar got me ¼" more droop and @⅜" more stuff.
My factory shock mounts are 21¾" droop and 18¼" stuff.
The ORD Bilstein recommend for 4" lift is 23⅜ and 15⅛.
The 3" lift recommend is 22½ and 14 even.
The spring is almost flat, as pictured. I know there might /will be more movement then I created. Question is how much.
The snubber to spring plate had 4" of clearance.
So which shock do I order?
On a bump you will stuff shorter than the 18", 15" gives you enough room, and on droop you got more than the stock shock, 2" more.