Ok I picked up a a 99 xj last night from a guy. He hit a brick mailbox or something and tore up the front axle assy., broke a wheel etc. Anyways I picked it cheap and I am going to fix it. Here's the question. The previous owner bought it with the lift so he didnt know much about it. It's got rusty's s300 springs up front (3" lift) with 2 spacers, one is about 2" and the other is about a inch. As far as I can tell the arms both (upper and lower) were stock. (bent all to hell now). Trac bar is stock and looks like a non-drop pitman arm. When I go back with another axle do I need to upgrade the trac bar to a adjustable one? And do I need adjustable arms for the lowers?
Also It has a 2" block out back, so I guess it is using after market leafs to achieve the lift and level the truck out. Is there anyway to tell what leafs might be on it?

Its on 33x12.50x15's fenders cut and has PLENTY of room for wheel travel. Oh and it has a ARB front bumper too.