Rear Axle Socket size

[Refugio]

Does anyone have one of these Sockets for the hub nut on the rear axle.
The one with the 4 prongs on it.
Went to Auto Zone and O'Reilly Auto parts and both stores have several but it's not clear as to which one i need.
I need to know what the diameter is.
The measurement from one prong across to the other.
I want to buy the socket before hand as I'm going to change bearings out on one side.
Once I take the axle out I could measure myself but I don't have another way to the store and its like 25 miles.

[RatherBNtheWoods]

Not sure if they're the same, or which diff you have, but for the dually I use a OTC 7269.

May look for some specs on that.