[FWB]

you will need a slide hammer axle puller to start. if the bearing is ok you won't need to replace it or worry about taking it on or off. if not i never mess with them myself i usually take it and let a napa or garage press it on and off for me.......can be a pain in the gonadial region if you don't have a good press available.

but rather straight forward, get the brakes out of the way unbolt the flange and pull the axle, pull the seal, put new seal in i use some goo to be sure it doesn't seep at the housing and carefully push the axle back in....

just keep the side of the car your pulling the axle from higher than the other side.......gear fluid smells bad when its on you...kinda lingers.. there should be some holes in the axle hub to get a socket in there to get at the flange