rear bearings and seals how do you replace them

You need to remove the half shaft. You may be lucky and it will pull out but more often you may need to put the hub back on and use a slide hammer to drive it out. Some use an old wheel and hit that till it comes out.

Once the shaft is out you can get a screwdriver and carefully leaver out the seal. The bearing should pull off with a puller. I use the old seal to drift the new one in.

Good luck and let us know how you got on.