That's quite strange to have the problem with new springs. On most TTB vehicles the problem occurs more with spring settling.
But maybe during reassembly something was put back wrong. With some bushing corrections, you must reassemble them properly or the camber goes very wrong. If a kit was installed previously, and then carelessly reinstalled with the spring swap, that could be the problem. Chances are if there were good factory style bushings in there, you would not be so far off after a spring swap.