Rear wheel bearing on a 2014 ford explorer. These things are a pain in the ass! The reason is, the knuckle is aluminum and the hub is Steele. It's creates a corrosive compound that seizes together. All kinds of different companies make various tools to remove it "easier". My boss at work taught me the old school bolt trick to get it out! It's so much better than beating your guts out and potentially hurting yourself on a missed swing of a hammer. It took a lot of hard work still, but came off, c