How do you repack wheel bearing on a Toyota highlander?

Pull the wheel front and rear bearing and clean out the old grease. You dont have to be perfect but do a good job. Then clean all the parts of as much of the old greas from the outside and make note...

usually every 2 years or 6,000 miles

I had to pressed in by a garage . they did not last . I bought 2 from a junk yard no problems after 110k more miles i

I am getting quoted 300-400

No, it is not.