you have to remove the lower ball joint nut and remove the spindle from the lower control arm then you can remove the axle and get to the bolts,you need a repair manual if you continue to work on this one,good luck with it.How do i change a wheel bearing on a 98 dodge avenger?
You will probably have to take some suspension parts off.
You also may need a socket extender that will bend (I forgot the name of it)
I found front and rear hubs for you at:
Front: http://mibearings.com/wheel-bearing/5131
Rear: http://mibearings.com/
They are USA made, and I suggest them
Good Luck!