" 4 wheel drive installed by Ford" leads me to believe that it's a Quigley conversion, though it could be a Quadvan, since I think those are the only to "ship through" conversion companies.
Actually now that I looked at the first picture again, it looks like a Quadvan 4x4 decal.
Herb
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SMB-less as of 02/04/2012. Our savings account is richer, but our adventures are poorer.
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"understeer is when you hit the wall with the front of your car, oversteer is when you hit the wall with the rear of your car, horsepower is how hard your car hits the wall, and torque is how far your car moves the wall."