Some info I found regarding the disconnect.

Quote:

The Waggie vacuum disconnect isn't on the axle tube, it's in the centersection with a big modulator attached in front of the diff cover.
its pretty hard to miss a vacuum disconnect axle.

The pumpkin should look just ike this one (this is my early bronco axle from my Pathfinder, but the pumpkins look the same):




The angled fitting on the top is for my ARB locker.. the one you are looking for will only have the vertical vent tube.