i have recently discovered that my xj's leaf springs are cracked and well they sag im kinda on a tite budget wondering ware i could get a set and also how to tell if a set of leaf springs are bad wen there in the jy and the jeep has no tires on it and the leaf springs are just hanging there is this at all possible?? or just guess and test?? and can i tell if they are lift packs or not??? need advice soon if any cause i will likely be goin brite and early in the am tommorow...(pics are good for examples etc.)