Roxanne: 1985 Cj-7

[85cj7]

i've got a question about shackles. Mine now are 1/2" lift 4" from hole to hole. When i make new ones should i keep them 4" or change them back to stock 3". Im certain i won't need the 1/2" of additional lift. But will the added inch of shackle length help in the full range of motion? I don't know what i'm going on and on about, just tell me what to do.

edit: i'm going to make boomerang ones so i know they will clear my bumpers, so i'm thinking i will need the added length of that reason.