Pulled the hubs on the trailer today. Brakes looked & worked fine. Bearing lots of grease & clean & shiny . This is the first axle I've had with a grease zerk on the end. Finally figured out how to use it I think. Grease port comes out on the inboard bearing & the seal forces the grease thru the hub out around thru the front bearing. I pumped grease in until I saw some coming out around the front bearing. Then pulled the hub, no grease inside the hub Got about an 1 to 2 notches turn on each axle nut. All in all axles & hubs looks to be in good shape. Tires may need replaced but I think I can get a few seasons yet out of them.