57-60 springs are wider. You'll have to drill new holes for the u-bolts, but other than that, it should go right together.
i flipped the front axle on my 58 and pulled a few leafs i had to bend the j arm down and i shortened the pitmant arm 1 1/2" and built a adjusitable drag link lifted the engine 1" and this let the frame sit on the axle i did not want to cut the frame because i want to run different suspension later so put a set of air shocks on the front to lift the frame off the axle