J30 Diff-Speed Sensor hole?

[RiceBurner98sC]

On the J30 diff there apparently is a opening which I would assume is where the J30 Speed sensor plugs into. The diff I was looking at doesnt have the sensor attached and I wanted to know if the actual diff fluid/gear oil would pour out of that opening or if it is a consealed area from the actual diff. I am trying to find an expansion valve locally that I could plug it with, but before I unbolt it from the car I wanted to get some imput on this.

[98s14inaz]

I don't think it does. I don't think mine had a rubber seal or anything so one would assume it doesn't see any fluid. My fsm didn't say anything about it either.

[RiceBurner98sC]

I didnt think so either...the area around the hole doesnt have any leakin fluid marks on it so Im assuming it wouldnt see any diff fluid but I wanted to make sure.

[Anand]

there is no speed sensor on the diffy... the wire that you see coming from the front of the diffy is the ABS sensor...

[98s14inaz]

The abs computer uses it to determine wheel speed to know when or if to activate the abs system.