special- yup, ones a GM and ones Dana, i guess i should have worded that better
i read somewhere one time that strength for strength, and most of the specs (axle tube dimensions, axle shaft diminsions, stock brake sizes, that kinda thing) are pretty well equal between the 2, but the 14 bolt 10.5 FF had a bigger pinion. i think it may have been peterson's 4 wheel and off road maybe?