I was reading the alignment guide and it says to change your castor you would want to push up on the pinion. I'm going to be installing front lower control arms tonight, but I have a 4x2 and do not have a front pinion (please no "buy a 4x4" comments please), any suggestions? Thanks!

 

if you have front adjustable lowers, simply make them longer. 23" eye to eye is a pretty good starting point and it should give you about +6° of caster.