Having just replaced my 3" wide monoleafs on my 99 Sport with the OME 2" lift springs, I can say with some assurance that the spring length on the 2-door and 4-door Explorers is the same. The eyes and bushings are the same as well.
What I cannot say is if Ford redesigned the rear springs when they did the makeover in 1995. Recall that they replaced the TTB with the IFS front end. I think that this is what Rick is asking.
My opinion is that the rear wasn't changed, but you might want to check with ARB. From what I recall on looking under other 91-94's, the front spring perch looks the same, but there are some variables that could still exist.
Gerald, actually, the 3" leaves narrow down a bit at the ends, but you're right about the bushings being made to fit the 3" inner width of the shackles. The spring appears to narrow to 2.5", enough so that the spring itself doesn't contact the shackle in back or the perch in front.