Greasing wheel bearings can get very messy very quickly, in a very kindergarten kind of way. The trick is to embrace the ooze, because greasing is the fun and easy part. The hard bit comes when ...

Begin re-greasing your trailer bearings by removing the lugs with a lug wrench. / Joe Shead Just like changing a flat tire, start by cracking loose your lug nuts while the tire is still on the ground.