Hi and Welcome to Just Answer! My name is Pavlin and I will do my best to help.
is it 4X4
you will need special tool to pull out hub and bearing and for instalation also, or you have to remobe front spindle and take it to a press to press it out and press it in after
. when hub is pressed out, normally inner bearing race will be stuck on hub shaft, it has to be cut using grinder.
after new bearing is installed, you will have to support the cender of bearing while pressing in the hub,
if you do not do that you will damage new bearing
click here for diagram
are you there, any questions please?
hub must be pressed out, but spindle removal is necessary
then you must remove retaining c-clip holding bearing
and then bearing has to be pressed out
you will need 20T press to do this, if do not have, you may take it to near shop to press bearing out and install new one for you.