well, technically the lower arms aren't steering or driveline.
rules of thumb (and these can differ depending on who is saying them):
1-2" is pucks and shackles
at 3" is where things get weird and you need coils, lower control arms, shocks, longer brake lines, longer sway bar links, and some sort of AAL or full leafpacks.
3" of lift and stock lowers usually pulls the tire back in the wheelwell. I've known guys to just run that way and not care (even though it looks funny and lessens your caster). Don found that he was able to shim his forward and since then others have done the same. But because there is only so much room to scoot the LCA bolt and all trucks are a bit different, I always caveat with this may work.