I haven't done any mods to my X and I am looking into getting some new tires (Dueler AT) either a set of 265/70/15 or 31's and some new shocks (still haven't decided). The guy at the truck shop was also trying to get me to look into adding new shackles and an AAL upgrade as well. I don't go off road except to get to some lakes and camping site on well establised trails. Should I stick with the new tires and shocks or add the shackels and AAL. What are the benefits

If you don't need or want the lift, it's a waste of money... shackles AND AALs will lift the back end too high to even the front out with the t-bars... if you want a bit of lift, go with one or the other, and lift the torsion bars... if not, stick with tires and shocks...