im cam, a licenced diagnotic tech.
the rear wheel bearings can be done at home by a diy mechanic, but it is a little extensive and requires some specialty tools. including seal pullers, bearing pullers and presses.
the rear axles must be removed, this includes removing the diff pan to access the lock clips,
than the seal must be removed followed by the bearing being removed. this is what requires a bearing puller or a slide hammer with a puller attachment.
you will usually have to replace the axles as well, because when a bearing goes, it will damage the axle surface
i have included a youtube video for you to see the process
the video is of a chev, but it is the same design and you will need the same tools.
here is the link
have a look at the video.
yes you can do it, but it is quite a job and does require some specialty tools.
if this is your first time doing a major repair like this, i would not recommend it
let me know if you need any more help and id be happy to assist!
thanks and i appreciate positive ratings!