I suppose that the reason you see a lot of people doing it is because when we do it, it’s miserable, and misery loves company. So we all post when we do it so others can feel the pain and send cosmic good vibes of support and understanding. Lol.
My motivation to undertake this project is threefold.
First is economy. I’m getting terrible mileage and when it snowed the other day I had the sensation that there was more rolling resistance in the front end than there used to be and the back was trying to pass up the front. Squirrley driving. Replacing front wheel bearings will eliminate that as a cause.
Second is steering. The steering knuckle bearings tend to wear in a depression in the race with the wheels oriented in a straight forward position. This can give the feeling of a detent or return to center. I wanted to smooth up the steering.
Third is the giant mess of grease and gear oil that has begun to accumulate, mostly on my drivers knuckle and flings onto my beautifully powder coated wheel. Not to mention the escape of critical front axle lubrication. I want things to be clean and new again. This is one big step in that process.
These rigs are old! The steering knuckle is a wear and maintenance item that needs to be done periodically. Now is my time.