How do i get to the knuckle???

[BILTIT]

I know i got the first little ring off and then i got the tooth piece out as well i will try to get soem pics of what i have gotten out so far tonight when i get home but i have gotten those two things off for sure and i havent had to use any special tools yet

A long chisel and hammer will get the nut off aswell, you don't NEED the socket although it is handy. The 6 prong socket would work if it is the combo (6 prong outside and 4 prong inside). Be sure to have the lock washer out before trying to turn the inner lock nut.