So I take it you aren't planning on wheeling your truck. The only thing you can do to get a 6" suspension lift is adapt a drop bracket one from same year Tacoma for the front and then you are on your own for the rear. The factory link arms will not like the angles in the rear and would require custom springs or LC springs with spacers. Ideally you would have custom rear links made with springs. Or convert to a leaf spring set-up. Do a search on here and you will find someone that did the 4" Pro-Comp drop bracket up front.