Brought my van in for ABS light on and the dealer told me it was a rear sensor that was located in the rear differential. I have been reading that it is on top of the diff. is this correct?

 

Yes the sensor is in the top of the housing. It has one electrical connector on it and one bolt holding it in.

 

Abs sensor dangling from differential
How do I reconnect this?

 

Don't mess with that fuel hose
That is an aux fuel feed for a generator
Your sensor is in the axle housing itself
Right on top with the 2 wires going to it that break off
Check the connector before replacing the sensor
OHM out that sensor before replacement too, you are looking for 1500 ohms
The new sensors are cheap and easy to replace
Get a Motorcraft one

 

Nothing to reconnect, that is a capped fuel supply line