There are two different sockets , depending on previous service of the bearings .
A 6 point ; 2 9/16" and a rounded corner version , when a single spindle locking nut was introduced , many times the double nut ( 6 point with lock ring ) was discarded, and the new locking nut installed ; so you won't know what socket you need till you have the axle out , and it could be different side to side . .
The site below has good info on parts .
There is a U tube video on the replacement , but somehow I have issue with the poster not extracting a broken axle flange bolt before assembly.
Several different nut torque numbers online , but none agree with my memory so still working on that .
The bearings and inner seal we'd pack with grease ( on the seal; to hold the lip tension spring in place during install ) install the hub , pump gear oil into the cavity inside the outer bearing race, then put the outer bearing in ; ( the bearing being packed kept the gear oil contained during the , nut torque sequence .
When I find the nut torque info I'll repost.