my 70 elco came with aftermarket? overload HD coil springs, raised the rear by 3"-anybody want 'em? So I got 2 identical normal springs from a bud and sho nuf, the pass. side is 1" lower now. I know they came with various springs and rates. how do ya tell by looking at them? both i have are same diameter & height. thinking of putting in a 1" spacer and calling it good, but dont like to do things that way.