Ford never did a factory 4x4 Van. Only outside vendors did the conversions,'Quigley','Pathfinder','Quadravan'. I've never looked for info on IDing the front axles. I doubt Spicer has a database either( IMO ).
One thing I've noticed about the older conversions on the street is that they are all using Ford D44 (drivers drop). Doesn't matter if it is Chevy, Dodge or Ford. They all seem to have the same style of axle.
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