Info for Front Wheel Bearing Installation

I need a new driver side hub assembly on my '95 Lumina and was wondering if anyone could tell me what size socket I'll need to take off the axle nut. I think it might be 32MM but not sure. I know I'll need a puller to get the old hub assembly off the spindle but will I need a tool to get the spindle back into the new hub or is it pulled in when the hub is tightened back onto the knuckle? Any pointers would be appreciated.

Welcome to AF. 36MM, procedure can be found at autozone.com, repair guides.