The equalizers are different length because they attach to the springs differently. The rear equalizer attaches to the center and rear springs with shackles front and rear. The front equalizer should have a shackle on the front, but bolts directly to the spring on the rear (front of center spring). You can see the difference in Joebedford's photo. Where there are shackles, the eyes of the springs should be above the eyes of the equalizers.
According to your spring hanger measurements, your axles should be 33" spacing center to center. This could vary a little once everything settles. The spring length should be 26" eye to eye.
For whatever reason, it seems that your center axle has moved back by about an inch or so. With only 1/4" between the center and rear tires, I'm guessing that you would have noticed this condition when you had reassembled it. So that leads me to believe something has shifted during your trip.
Is it possible that the u-bolts aren't tight on the center axle?