Great write up, i have just completed one side on my 180sx with an R33 rear end. I used this guide with a few little tricks of my own and i thought i might share them.
First of all, you will need a couple more tools doing this way
32mm socket
bearing press
bench vice
3 pronged pulley style puller
• 36mm socket
19mm – For 4x Bearing Bolts
• 17mm socket or spanner
• Breaker bar
• Jack and stands
• Leadlight
At this point, this is where the vice and a 32mm socket come into play. Place the hub assembly upside down resting the 4 bolt holes of the bearing on top of the vice jaws (studs pointing to the ground). Grab the 32mm socket and place inside of bearing and attach a1/2inch extender, now grab a decent sized hammer and bash the crap out of the socket. You will end up removing the bearing from the hub except for some of the inner casing. So you will still end up with a bearing looking like this.
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And this is what the hub looks like, to remove the rest of the bearing casing I used a dremel being careful not to score the hub, then gave it a few love taps with a chisel which will cause the bearing to crack right though, then just lightly pry it off with a flathead
I then pressed in the new bearing using the same vice, the vice I have wasn’t quite big enough for the job but still did the job, when pressing the bearing on the shaft it would get really tight in some spots, at that point I would gently tap the bearingwhich would help slide the bearing further on the shaft, repeated this method to fully seat the bearing.
And you’re done, just need to put it back on the car.
Hope this saves you a few hours