Driver's side rear trans sensor leaking
 

Is that the speed sensor? It's a round plastic disc like thing in the side of the transmission near the rear output shaft with a plug in it. I'm can't find a part number or listing for that piece to find a seal or gasket.

That would be the vss (vehicle speed sensor)

Thanks. Do you know if it has an o-ring in there?

There is and oring around the sensor if leaking around it you can replace that , If leaking through the plug you will need a new sensor

I noticed recently mine has the same leak. I would be interested in finding out what part # the seal or o-ring is and how difficult an operation changing it would be.