Just did mine. The drain requires a 24mm socket and the fill takes a 24mm open end or box wrench. To get the car on jack stands drive the front up and ramps. Then you can use a trolly jack under the reinforced crossmember at the front to raise it the rest of the way to fit the jack stands. Then lift the Diff. at the rear and put the rear jack stands under it.

 

Two 1-inch boards are required for me to drive up on to get a jack under either center jacking point or to slide my lift under. I'm at OEM suspension height. The differential drain and fill bolts are the same thread but have 23mm and 24mm head sizes. I use a crow-foot attachment to my socket handle for the fill bolt.

-- Chuck