No. None of the Mopar boxes can be messed with, as to ratio swapping.
But there is a 3.09 low version of the standard box. I have one and I love it with 3.55s. It takes off in first like it had 4.10s. It would also work with 3.23s, taking off like 3.73s, and then you get the hi-way revs down a bit.w