alternatives to an 8.75- what about an explorer 8.8?

I have an explorer 8.8 under my 68 Dart, I did the swap about a year ago and it seems to be fine so far, the one I used came from a 97 w/80k and has 4.10's and a trac lok.

I did it as cheap as possible just to see if it would work, I had the dr side cut down and used a short pass side axle on the dr side, took about 2.5" off the total width and is 57" flange to flange. The driveshaft was real simple, it's the same length as one for a 8.75 car, since I already had 7290 U joints I just used a 1330-7290 adaptor U joint at the rear. I'm running 15x7 wheels with 3.5" backspace and they sit dead center in the stock wheelwells, the car had stock width A body 8.75 with B body brakes before and needed 4.5" backspace to keep the tires away from the fenderlips.